mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-23 12:16:38 +00:00
1e7b32490d
This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).
4584 lines
144 KiB
Go
4584 lines
144 KiB
Go
package interpreter
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import (
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"context"
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"encoding/binary"
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"errors"
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"fmt"
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"math"
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"math/bits"
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"sync"
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"unsafe"
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"github.com/tetratelabs/wazero/api"
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"github.com/tetratelabs/wazero/experimental"
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"github.com/tetratelabs/wazero/internal/expctxkeys"
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"github.com/tetratelabs/wazero/internal/filecache"
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"github.com/tetratelabs/wazero/internal/internalapi"
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"github.com/tetratelabs/wazero/internal/moremath"
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"github.com/tetratelabs/wazero/internal/wasm"
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"github.com/tetratelabs/wazero/internal/wasmdebug"
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"github.com/tetratelabs/wazero/internal/wasmruntime"
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)
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// callStackCeiling is the maximum WebAssembly call frame stack height. This allows wazero to raise
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// wasm.ErrCallStackOverflow instead of overflowing the Go runtime.
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//
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// The default value should suffice for most use cases. Those wishing to change this can via `go build -ldflags`.
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var callStackCeiling = 2000
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// engine is an interpreter implementation of wasm.Engine
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type engine struct {
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enabledFeatures api.CoreFeatures
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compiledFunctions map[wasm.ModuleID][]compiledFunction // guarded by mutex.
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mux sync.RWMutex
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}
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func NewEngine(_ context.Context, enabledFeatures api.CoreFeatures, _ filecache.Cache) wasm.Engine {
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return &engine{
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enabledFeatures: enabledFeatures,
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compiledFunctions: map[wasm.ModuleID][]compiledFunction{},
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}
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}
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// Close implements the same method as documented on wasm.Engine.
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func (e *engine) Close() (err error) {
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return
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}
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// CompiledModuleCount implements the same method as documented on wasm.Engine.
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func (e *engine) CompiledModuleCount() uint32 {
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return uint32(len(e.compiledFunctions))
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}
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// DeleteCompiledModule implements the same method as documented on wasm.Engine.
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func (e *engine) DeleteCompiledModule(m *wasm.Module) {
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e.deleteCompiledFunctions(m)
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}
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func (e *engine) deleteCompiledFunctions(module *wasm.Module) {
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e.mux.Lock()
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defer e.mux.Unlock()
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delete(e.compiledFunctions, module.ID)
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}
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func (e *engine) addCompiledFunctions(module *wasm.Module, fs []compiledFunction) {
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e.mux.Lock()
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defer e.mux.Unlock()
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e.compiledFunctions[module.ID] = fs
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}
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func (e *engine) getCompiledFunctions(module *wasm.Module) (fs []compiledFunction, ok bool) {
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e.mux.RLock()
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defer e.mux.RUnlock()
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fs, ok = e.compiledFunctions[module.ID]
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return
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}
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// moduleEngine implements wasm.ModuleEngine
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type moduleEngine struct {
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// codes are the compiled functions in a module instances.
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// The index is module instance-scoped.
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functions []function
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// parentEngine holds *engine from which this module engine is created from.
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parentEngine *engine
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}
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// GetGlobalValue implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) GetGlobalValue(wasm.Index) (lo, hi uint64) {
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panic("BUG: GetGlobalValue should never be called on interpreter mode")
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}
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// SetGlobalValue implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) SetGlobalValue(idx wasm.Index, lo, hi uint64) {
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panic("BUG: SetGlobalValue should never be called on interpreter mode")
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}
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// OwnsGlobals implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) OwnsGlobals() bool { return false }
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// callEngine holds context per moduleEngine.Call, and shared across all the
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// function calls originating from the same moduleEngine.Call execution.
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//
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// This implements api.Function.
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type callEngine struct {
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internalapi.WazeroOnlyType
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// stack contains the operands.
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// Note that all the values are represented as uint64.
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stack []uint64
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// frames are the function call stack.
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frames []*callFrame
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// f is the initial function for this call engine.
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f *function
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// stackiterator for Listeners to walk frames and stack.
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stackIterator stackIterator
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}
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func (e *moduleEngine) newCallEngine(compiled *function) *callEngine {
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return &callEngine{f: compiled}
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}
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func (ce *callEngine) pushValue(v uint64) {
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ce.stack = append(ce.stack, v)
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}
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func (ce *callEngine) pushValues(v []uint64) {
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ce.stack = append(ce.stack, v...)
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}
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func (ce *callEngine) popValue() (v uint64) {
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// No need to check stack bound
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// as we can assume that all the operations
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// are valid thanks to validateFunction
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// at module validation phase
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// and interpreterir translation
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// before compilation.
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stackTopIndex := len(ce.stack) - 1
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v = ce.stack[stackTopIndex]
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ce.stack = ce.stack[:stackTopIndex]
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return
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}
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func (ce *callEngine) popValues(v []uint64) {
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stackTopIndex := len(ce.stack) - len(v)
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copy(v, ce.stack[stackTopIndex:])
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ce.stack = ce.stack[:stackTopIndex]
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}
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// peekValues peeks api.ValueType values from the stack and returns them.
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func (ce *callEngine) peekValues(count int) []uint64 {
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if count == 0 {
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return nil
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}
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stackLen := len(ce.stack)
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return ce.stack[stackLen-count : stackLen]
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}
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func (ce *callEngine) drop(raw uint64) {
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r := inclusiveRangeFromU64(raw)
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if r.Start == -1 {
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return
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} else if r.Start == 0 {
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ce.stack = ce.stack[:int32(len(ce.stack))-1-r.End]
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} else {
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newStack := ce.stack[:int32(len(ce.stack))-1-r.End]
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newStack = append(newStack, ce.stack[int32(len(ce.stack))-r.Start:]...)
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ce.stack = newStack
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}
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}
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func (ce *callEngine) pushFrame(frame *callFrame) {
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if callStackCeiling <= len(ce.frames) {
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panic(wasmruntime.ErrRuntimeStackOverflow)
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}
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ce.frames = append(ce.frames, frame)
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}
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func (ce *callEngine) popFrame() (frame *callFrame) {
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// No need to check stack bound as we can assume that all the operations are valid thanks to validateFunction at
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// module validation phase and interpreterir translation before compilation.
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oneLess := len(ce.frames) - 1
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frame = ce.frames[oneLess]
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ce.frames = ce.frames[:oneLess]
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return
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}
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type callFrame struct {
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// pc is the program counter representing the current position in code.body.
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pc uint64
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// f is the compiled function used in this function frame.
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f *function
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// base index in the frame of this function, used to detect the count of
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// values on the stack.
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base int
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}
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type compiledFunction struct {
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source *wasm.Module
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body []unionOperation
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listener experimental.FunctionListener
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offsetsInWasmBinary []uint64
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hostFn interface{}
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ensureTermination bool
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index wasm.Index
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}
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type function struct {
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funcType *wasm.FunctionType
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moduleInstance *wasm.ModuleInstance
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typeID wasm.FunctionTypeID
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parent *compiledFunction
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}
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// functionFromUintptr resurrects the original *function from the given uintptr
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// which comes from either funcref table or OpcodeRefFunc instruction.
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func functionFromUintptr(ptr uintptr) *function {
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// Wraps ptrs as the double pointer in order to avoid the unsafe access as detected by race detector.
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//
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// For example, if we have (*function)(unsafe.Pointer(ptr)) instead, then the race detector's "checkptr"
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// subroutine wanrs as "checkptr: pointer arithmetic result points to invalid allocation"
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// https://github.com/golang/go/blob/1ce7fcf139417d618c2730010ede2afb41664211/src/runtime/checkptr.go#L69
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var wrapped *uintptr = &ptr
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return *(**function)(unsafe.Pointer(wrapped))
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}
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type snapshot struct {
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stack []uint64
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frames []*callFrame
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pc uint64
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ret []uint64
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ce *callEngine
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}
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// Snapshot implements the same method as documented on experimental.Snapshotter.
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func (ce *callEngine) Snapshot() experimental.Snapshot {
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stack := make([]uint64, len(ce.stack))
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copy(stack, ce.stack)
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frames := make([]*callFrame, len(ce.frames))
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copy(frames, ce.frames)
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return &snapshot{
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stack: stack,
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frames: frames,
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ce: ce,
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}
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}
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// Restore implements the same method as documented on experimental.Snapshot.
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func (s *snapshot) Restore(ret []uint64) {
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s.ret = ret
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panic(s)
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}
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func (s *snapshot) doRestore() {
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ce := s.ce
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ce.stack = s.stack
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ce.frames = s.frames
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ce.frames[len(ce.frames)-1].pc = s.pc
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copy(ce.stack[len(ce.stack)-len(s.ret):], s.ret)
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}
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// Error implements the same method on error.
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func (s *snapshot) Error() string {
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return "unhandled snapshot restore, this generally indicates restore was called from a different " +
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"exported function invocation than snapshot"
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}
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// stackIterator implements experimental.StackIterator.
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type stackIterator struct {
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stack []uint64
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frames []*callFrame
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started bool
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fn *function
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pc uint64
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}
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func (si *stackIterator) reset(stack []uint64, frames []*callFrame, f *function) {
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si.fn = f
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si.pc = 0
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si.stack = stack
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si.frames = frames
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si.started = false
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}
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func (si *stackIterator) clear() {
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si.stack = nil
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si.frames = nil
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si.started = false
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si.fn = nil
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}
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// Next implements the same method as documented on experimental.StackIterator.
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func (si *stackIterator) Next() bool {
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if !si.started {
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si.started = true
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return true
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}
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if len(si.frames) == 0 {
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return false
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}
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frame := si.frames[len(si.frames)-1]
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si.stack = si.stack[:frame.base]
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si.fn = frame.f
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si.pc = frame.pc
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si.frames = si.frames[:len(si.frames)-1]
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return true
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}
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// Function implements the same method as documented on
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// experimental.StackIterator.
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func (si *stackIterator) Function() experimental.InternalFunction {
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return internalFunction{si.fn}
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}
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// ProgramCounter implements the same method as documented on
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// experimental.StackIterator.
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func (si *stackIterator) ProgramCounter() experimental.ProgramCounter {
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return experimental.ProgramCounter(si.pc)
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}
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// internalFunction implements experimental.InternalFunction.
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type internalFunction struct{ *function }
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// Definition implements the same method as documented on
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// experimental.InternalFunction.
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func (f internalFunction) Definition() api.FunctionDefinition {
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return f.definition()
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}
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// SourceOffsetForPC implements the same method as documented on
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// experimental.InternalFunction.
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func (f internalFunction) SourceOffsetForPC(pc experimental.ProgramCounter) uint64 {
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offsetsMap := f.parent.offsetsInWasmBinary
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if uint64(pc) < uint64(len(offsetsMap)) {
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return offsetsMap[pc]
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}
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return 0
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}
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// interpreter mode doesn't maintain call frames in the stack, so pass the zero size to the IR.
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const callFrameStackSize = 0
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// CompileModule implements the same method as documented on wasm.Engine.
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func (e *engine) CompileModule(_ context.Context, module *wasm.Module, listeners []experimental.FunctionListener, ensureTermination bool) error {
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if _, ok := e.getCompiledFunctions(module); ok { // cache hit!
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return nil
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}
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funcs := make([]compiledFunction, len(module.FunctionSection))
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irCompiler, err := newCompiler(e.enabledFeatures, callFrameStackSize, module, ensureTermination)
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if err != nil {
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return err
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}
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imported := module.ImportFunctionCount
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for i := range module.CodeSection {
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var lsn experimental.FunctionListener
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if i < len(listeners) {
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lsn = listeners[i]
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}
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compiled := &funcs[i]
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// If this is the host function, there's nothing to do as the runtime representation of
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// host function in interpreter is its Go function itself as opposed to Wasm functions,
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// which need to be compiled down to
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if codeSeg := &module.CodeSection[i]; codeSeg.GoFunc != nil {
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compiled.hostFn = codeSeg.GoFunc
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} else {
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ir, err := irCompiler.Next()
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if err != nil {
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return err
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}
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err = e.lowerIR(ir, compiled)
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if err != nil {
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def := module.FunctionDefinition(uint32(i) + module.ImportFunctionCount)
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return fmt.Errorf("failed to lower func[%s] to interpreterir: %w", def.DebugName(), err)
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}
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}
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compiled.source = module
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compiled.ensureTermination = ensureTermination
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compiled.listener = lsn
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compiled.index = imported + uint32(i)
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}
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e.addCompiledFunctions(module, funcs)
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return nil
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}
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// NewModuleEngine implements the same method as documented on wasm.Engine.
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func (e *engine) NewModuleEngine(module *wasm.Module, instance *wasm.ModuleInstance) (wasm.ModuleEngine, error) {
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me := &moduleEngine{
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parentEngine: e,
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functions: make([]function, len(module.FunctionSection)+int(module.ImportFunctionCount)),
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}
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codes, ok := e.getCompiledFunctions(module)
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if !ok {
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return nil, errors.New("source module must be compiled before instantiation")
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}
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for i := range codes {
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c := &codes[i]
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offset := i + int(module.ImportFunctionCount)
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typeIndex := module.FunctionSection[i]
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me.functions[offset] = function{
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moduleInstance: instance,
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typeID: instance.TypeIDs[typeIndex],
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funcType: &module.TypeSection[typeIndex],
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parent: c,
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}
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}
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return me, nil
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}
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// lowerIR lowers the interpreterir operations to engine friendly struct.
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func (e *engine) lowerIR(ir *compilationResult, ret *compiledFunction) error {
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// Copy the body from the result.
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ret.body = make([]unionOperation, len(ir.Operations))
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copy(ret.body, ir.Operations)
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// Also copy the offsets if necessary.
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if offsets := ir.IROperationSourceOffsetsInWasmBinary; len(offsets) > 0 {
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ret.offsetsInWasmBinary = make([]uint64, len(offsets))
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copy(ret.offsetsInWasmBinary, offsets)
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}
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labelAddressResolutions := [labelKindNum][]uint64{}
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// First, we iterate all labels, and resolve the address.
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for i := range ret.body {
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op := &ret.body[i]
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switch op.Kind {
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case operationKindLabel:
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label := label(op.U1)
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address := uint64(i)
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kind, fid := label.Kind(), label.FrameID()
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frameToAddresses := labelAddressResolutions[label.Kind()]
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// Expand the slice if necessary.
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if diff := fid - len(frameToAddresses) + 1; diff > 0 {
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for j := 0; j < diff; j++ {
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frameToAddresses = append(frameToAddresses, 0)
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}
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}
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frameToAddresses[fid] = address
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labelAddressResolutions[kind] = frameToAddresses
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}
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}
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// Then resolve the label as the index to the body.
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for i := range ret.body {
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op := &ret.body[i]
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switch op.Kind {
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case operationKindBr:
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e.setLabelAddress(&op.U1, label(op.U1), labelAddressResolutions)
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case operationKindBrIf:
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e.setLabelAddress(&op.U1, label(op.U1), labelAddressResolutions)
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e.setLabelAddress(&op.U2, label(op.U2), labelAddressResolutions)
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case operationKindBrTable:
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for j := 0; j < len(op.Us); j += 2 {
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target := op.Us[j]
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e.setLabelAddress(&op.Us[j], label(target), labelAddressResolutions)
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}
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}
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}
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return nil
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}
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func (e *engine) setLabelAddress(op *uint64, label label, labelAddressResolutions [labelKindNum][]uint64) {
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if label.IsReturnTarget() {
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// Jmp to the end of the possible binary.
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*op = math.MaxUint64
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} else {
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*op = labelAddressResolutions[label.Kind()][label.FrameID()]
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}
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}
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// ResolveImportedFunction implements wasm.ModuleEngine.
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func (e *moduleEngine) ResolveImportedFunction(index, indexInImportedModule wasm.Index, importedModuleEngine wasm.ModuleEngine) {
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imported := importedModuleEngine.(*moduleEngine)
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e.functions[index] = imported.functions[indexInImportedModule]
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}
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// ResolveImportedMemory implements wasm.ModuleEngine.
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func (e *moduleEngine) ResolveImportedMemory(wasm.ModuleEngine) {}
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// DoneInstantiation implements wasm.ModuleEngine.
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func (e *moduleEngine) DoneInstantiation() {}
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// FunctionInstanceReference implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) FunctionInstanceReference(funcIndex wasm.Index) wasm.Reference {
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return uintptr(unsafe.Pointer(&e.functions[funcIndex]))
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}
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// NewFunction implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) NewFunction(index wasm.Index) (ce api.Function) {
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// Note: The input parameters are pre-validated, so a compiled function is only absent on close. Updates to
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// code on close aren't locked, neither is this read.
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compiled := &e.functions[index]
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return e.newCallEngine(compiled)
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}
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// LookupFunction implements the same method as documented on wasm.ModuleEngine.
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func (e *moduleEngine) LookupFunction(t *wasm.TableInstance, typeId wasm.FunctionTypeID, tableOffset wasm.Index) (*wasm.ModuleInstance, wasm.Index) {
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if tableOffset >= uint32(len(t.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
rawPtr := t.References[tableOffset]
|
|
if rawPtr == 0 {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
|
|
tf := functionFromUintptr(rawPtr)
|
|
if tf.typeID != typeId {
|
|
panic(wasmruntime.ErrRuntimeIndirectCallTypeMismatch)
|
|
}
|
|
return tf.moduleInstance, tf.parent.index
|
|
}
|
|
|
|
// Definition implements the same method as documented on api.Function.
|
|
func (ce *callEngine) Definition() api.FunctionDefinition {
|
|
return ce.f.definition()
|
|
}
|
|
|
|
func (f *function) definition() api.FunctionDefinition {
|
|
compiled := f.parent
|
|
return compiled.source.FunctionDefinition(compiled.index)
|
|
}
|
|
|
|
// Call implements the same method as documented on api.Function.
|
|
func (ce *callEngine) Call(ctx context.Context, params ...uint64) (results []uint64, err error) {
|
|
ft := ce.f.funcType
|
|
if n := ft.ParamNumInUint64; n != len(params) {
|
|
return nil, fmt.Errorf("expected %d params, but passed %d", n, len(params))
|
|
}
|
|
return ce.call(ctx, params, nil)
|
|
}
|
|
|
|
// CallWithStack implements the same method as documented on api.Function.
|
|
func (ce *callEngine) CallWithStack(ctx context.Context, stack []uint64) error {
|
|
params, results, err := wasm.SplitCallStack(ce.f.funcType, stack)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = ce.call(ctx, params, results)
|
|
return err
|
|
}
|
|
|
|
func (ce *callEngine) call(ctx context.Context, params, results []uint64) (_ []uint64, err error) {
|
|
m := ce.f.moduleInstance
|
|
if ce.f.parent.ensureTermination {
|
|
select {
|
|
case <-ctx.Done():
|
|
// If the provided context is already done, close the call context
|
|
// and return the error.
|
|
m.CloseWithCtxErr(ctx)
|
|
return nil, m.FailIfClosed()
|
|
default:
|
|
}
|
|
}
|
|
|
|
if ctx.Value(expctxkeys.EnableSnapshotterKey{}) != nil {
|
|
ctx = context.WithValue(ctx, expctxkeys.SnapshotterKey{}, ce)
|
|
}
|
|
|
|
defer func() {
|
|
// If the module closed during the call, and the call didn't err for another reason, set an ExitError.
|
|
if err == nil {
|
|
err = m.FailIfClosed()
|
|
}
|
|
// TODO: ^^ Will not fail if the function was imported from a closed module.
|
|
|
|
if v := recover(); v != nil {
|
|
err = ce.recoverOnCall(ctx, m, v)
|
|
}
|
|
}()
|
|
|
|
ce.pushValues(params)
|
|
|
|
if ce.f.parent.ensureTermination {
|
|
done := m.CloseModuleOnCanceledOrTimeout(ctx)
|
|
defer done()
|
|
}
|
|
|
|
ce.callFunction(ctx, m, ce.f)
|
|
|
|
// This returns a safe copy of the results, instead of a slice view. If we
|
|
// returned a re-slice, the caller could accidentally or purposefully
|
|
// corrupt the stack of subsequent calls.
|
|
ft := ce.f.funcType
|
|
if results == nil && ft.ResultNumInUint64 > 0 {
|
|
results = make([]uint64, ft.ResultNumInUint64)
|
|
}
|
|
ce.popValues(results)
|
|
return results, nil
|
|
}
|
|
|
|
// functionListenerInvocation captures arguments needed to perform function
|
|
// listener invocations when unwinding the call stack.
|
|
type functionListenerInvocation struct {
|
|
experimental.FunctionListener
|
|
def api.FunctionDefinition
|
|
}
|
|
|
|
// recoverOnCall takes the recovered value `recoverOnCall`, and wraps it
|
|
// with the call frame stack traces. Also, reset the state of callEngine
|
|
// so that it can be used for the subsequent calls.
|
|
func (ce *callEngine) recoverOnCall(ctx context.Context, m *wasm.ModuleInstance, v interface{}) (err error) {
|
|
if s, ok := v.(*snapshot); ok {
|
|
// A snapshot that wasn't handled was created by a different call engine possibly from a nested wasm invocation,
|
|
// let it propagate up to be handled by the caller.
|
|
panic(s)
|
|
}
|
|
|
|
builder := wasmdebug.NewErrorBuilder()
|
|
frameCount := len(ce.frames)
|
|
functionListeners := make([]functionListenerInvocation, 0, 16)
|
|
|
|
if frameCount > wasmdebug.MaxFrames {
|
|
frameCount = wasmdebug.MaxFrames
|
|
}
|
|
for i := 0; i < frameCount; i++ {
|
|
frame := ce.popFrame()
|
|
f := frame.f
|
|
def := f.definition()
|
|
var sources []string
|
|
if parent := frame.f.parent; parent.body != nil && len(parent.offsetsInWasmBinary) > 0 {
|
|
sources = parent.source.DWARFLines.Line(parent.offsetsInWasmBinary[frame.pc])
|
|
}
|
|
builder.AddFrame(def.DebugName(), def.ParamTypes(), def.ResultTypes(), sources)
|
|
if f.parent.listener != nil {
|
|
functionListeners = append(functionListeners, functionListenerInvocation{
|
|
FunctionListener: f.parent.listener,
|
|
def: f.definition(),
|
|
})
|
|
}
|
|
}
|
|
|
|
err = builder.FromRecovered(v)
|
|
for i := range functionListeners {
|
|
functionListeners[i].Abort(ctx, m, functionListeners[i].def, err)
|
|
}
|
|
|
|
// Allows the reuse of CallEngine.
|
|
ce.stack, ce.frames = ce.stack[:0], ce.frames[:0]
|
|
return
|
|
}
|
|
|
|
func (ce *callEngine) callFunction(ctx context.Context, m *wasm.ModuleInstance, f *function) {
|
|
if f.parent.hostFn != nil {
|
|
ce.callGoFuncWithStack(ctx, m, f)
|
|
} else if lsn := f.parent.listener; lsn != nil {
|
|
ce.callNativeFuncWithListener(ctx, m, f, lsn)
|
|
} else {
|
|
ce.callNativeFunc(ctx, m, f)
|
|
}
|
|
}
|
|
|
|
func (ce *callEngine) callGoFunc(ctx context.Context, m *wasm.ModuleInstance, f *function, stack []uint64) {
|
|
typ := f.funcType
|
|
lsn := f.parent.listener
|
|
if lsn != nil {
|
|
params := stack[:typ.ParamNumInUint64]
|
|
ce.stackIterator.reset(ce.stack, ce.frames, f)
|
|
lsn.Before(ctx, m, f.definition(), params, &ce.stackIterator)
|
|
ce.stackIterator.clear()
|
|
}
|
|
frame := &callFrame{f: f, base: len(ce.stack)}
|
|
ce.pushFrame(frame)
|
|
|
|
fn := f.parent.hostFn
|
|
switch fn := fn.(type) {
|
|
case api.GoModuleFunction:
|
|
fn.Call(ctx, m, stack)
|
|
case api.GoFunction:
|
|
fn.Call(ctx, stack)
|
|
}
|
|
|
|
ce.popFrame()
|
|
if lsn != nil {
|
|
// TODO: This doesn't get the error due to use of panic to propagate them.
|
|
results := stack[:typ.ResultNumInUint64]
|
|
lsn.After(ctx, m, f.definition(), results)
|
|
}
|
|
}
|
|
|
|
func (ce *callEngine) callNativeFunc(ctx context.Context, m *wasm.ModuleInstance, f *function) {
|
|
frame := &callFrame{f: f, base: len(ce.stack)}
|
|
moduleInst := f.moduleInstance
|
|
functions := moduleInst.Engine.(*moduleEngine).functions
|
|
memoryInst := moduleInst.MemoryInstance
|
|
globals := moduleInst.Globals
|
|
tables := moduleInst.Tables
|
|
typeIDs := moduleInst.TypeIDs
|
|
dataInstances := moduleInst.DataInstances
|
|
elementInstances := moduleInst.ElementInstances
|
|
ce.pushFrame(frame)
|
|
body := frame.f.parent.body
|
|
bodyLen := uint64(len(body))
|
|
for frame.pc < bodyLen {
|
|
op := &body[frame.pc]
|
|
// TODO: add description of each operation/case
|
|
// on, for example, how many args are used,
|
|
// how the stack is modified, etc.
|
|
switch op.Kind {
|
|
case operationKindBuiltinFunctionCheckExitCode:
|
|
if err := m.FailIfClosed(); err != nil {
|
|
panic(err)
|
|
}
|
|
frame.pc++
|
|
case operationKindUnreachable:
|
|
panic(wasmruntime.ErrRuntimeUnreachable)
|
|
case operationKindBr:
|
|
frame.pc = op.U1
|
|
case operationKindBrIf:
|
|
if ce.popValue() > 0 {
|
|
ce.drop(op.U3)
|
|
frame.pc = op.U1
|
|
} else {
|
|
frame.pc = op.U2
|
|
}
|
|
case operationKindBrTable:
|
|
v := ce.popValue()
|
|
defaultAt := uint64(len(op.Us))/2 - 1
|
|
if v > defaultAt {
|
|
v = defaultAt
|
|
}
|
|
v *= 2
|
|
ce.drop(op.Us[v+1])
|
|
frame.pc = op.Us[v]
|
|
case operationKindCall:
|
|
func() {
|
|
if ctx.Value(expctxkeys.EnableSnapshotterKey{}) != nil {
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
if s, ok := r.(*snapshot); ok && s.ce == ce {
|
|
s.doRestore()
|
|
frame = ce.frames[len(ce.frames)-1]
|
|
body = frame.f.parent.body
|
|
bodyLen = uint64(len(body))
|
|
} else {
|
|
panic(r)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
ce.callFunction(ctx, f.moduleInstance, &functions[op.U1])
|
|
}()
|
|
frame.pc++
|
|
case operationKindCallIndirect:
|
|
offset := ce.popValue()
|
|
table := tables[op.U2]
|
|
if offset >= uint64(len(table.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
rawPtr := table.References[offset]
|
|
if rawPtr == 0 {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
|
|
tf := functionFromUintptr(rawPtr)
|
|
if tf.typeID != typeIDs[op.U1] {
|
|
panic(wasmruntime.ErrRuntimeIndirectCallTypeMismatch)
|
|
}
|
|
|
|
ce.callFunction(ctx, f.moduleInstance, tf)
|
|
frame.pc++
|
|
case operationKindDrop:
|
|
ce.drop(op.U1)
|
|
frame.pc++
|
|
case operationKindSelect:
|
|
c := ce.popValue()
|
|
if op.B3 { // Target is vector.
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
if c == 0 {
|
|
_, _ = ce.popValue(), ce.popValue() // discard the x1's lo and hi bits.
|
|
ce.pushValue(x2Lo)
|
|
ce.pushValue(x2Hi)
|
|
}
|
|
} else {
|
|
v2 := ce.popValue()
|
|
if c == 0 {
|
|
_ = ce.popValue()
|
|
ce.pushValue(v2)
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindPick:
|
|
index := len(ce.stack) - 1 - int(op.U1)
|
|
ce.pushValue(ce.stack[index])
|
|
if op.B3 { // V128 value target.
|
|
ce.pushValue(ce.stack[index+1])
|
|
}
|
|
frame.pc++
|
|
case operationKindSet:
|
|
if op.B3 { // V128 value target.
|
|
lowIndex := len(ce.stack) - 1 - int(op.U1)
|
|
highIndex := lowIndex + 1
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
ce.stack[lowIndex], ce.stack[highIndex] = lo, hi
|
|
} else {
|
|
index := len(ce.stack) - 1 - int(op.U1)
|
|
ce.stack[index] = ce.popValue()
|
|
}
|
|
frame.pc++
|
|
case operationKindGlobalGet:
|
|
g := globals[op.U1]
|
|
ce.pushValue(g.Val)
|
|
if g.Type.ValType == wasm.ValueTypeV128 {
|
|
ce.pushValue(g.ValHi)
|
|
}
|
|
frame.pc++
|
|
case operationKindGlobalSet:
|
|
g := globals[op.U1]
|
|
if g.Type.ValType == wasm.ValueTypeV128 {
|
|
g.ValHi = ce.popValue()
|
|
}
|
|
g.Val = ce.popValue()
|
|
frame.pc++
|
|
case operationKindLoad:
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32, unsignedTypeF32:
|
|
if val, ok := memoryInst.ReadUint32Le(offset); !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
} else {
|
|
ce.pushValue(uint64(val))
|
|
}
|
|
case unsignedTypeI64, unsignedTypeF64:
|
|
if val, ok := memoryInst.ReadUint64Le(offset); !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
} else {
|
|
ce.pushValue(val)
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindLoad8:
|
|
val, ok := memoryInst.ReadByte(ce.popMemoryOffset(op))
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
|
|
switch signedInt(op.B1) {
|
|
case signedInt32:
|
|
ce.pushValue(uint64(uint32(int8(val))))
|
|
case signedInt64:
|
|
ce.pushValue(uint64(int8(val)))
|
|
case signedUint32, signedUint64:
|
|
ce.pushValue(uint64(val))
|
|
}
|
|
frame.pc++
|
|
case operationKindLoad16:
|
|
|
|
val, ok := memoryInst.ReadUint16Le(ce.popMemoryOffset(op))
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
|
|
switch signedInt(op.B1) {
|
|
case signedInt32:
|
|
ce.pushValue(uint64(uint32(int16(val))))
|
|
case signedInt64:
|
|
ce.pushValue(uint64(int16(val)))
|
|
case signedUint32, signedUint64:
|
|
ce.pushValue(uint64(val))
|
|
}
|
|
frame.pc++
|
|
case operationKindLoad32:
|
|
val, ok := memoryInst.ReadUint32Le(ce.popMemoryOffset(op))
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
|
|
if op.B1 == 1 { // Signed
|
|
ce.pushValue(uint64(int32(val)))
|
|
} else {
|
|
ce.pushValue(uint64(val))
|
|
}
|
|
frame.pc++
|
|
case operationKindStore:
|
|
val := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32, unsignedTypeF32:
|
|
if !memoryInst.WriteUint32Le(offset, uint32(val)) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
case unsignedTypeI64, unsignedTypeF64:
|
|
if !memoryInst.WriteUint64Le(offset, val) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindStore8:
|
|
val := byte(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
if !memoryInst.WriteByte(offset, val) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindStore16:
|
|
val := uint16(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
if !memoryInst.WriteUint16Le(offset, val) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindStore32:
|
|
val := uint32(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
if !memoryInst.WriteUint32Le(offset, val) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindMemorySize:
|
|
ce.pushValue(uint64(memoryInst.Pages()))
|
|
frame.pc++
|
|
case operationKindMemoryGrow:
|
|
n := ce.popValue()
|
|
if res, ok := memoryInst.Grow(uint32(n)); !ok {
|
|
ce.pushValue(uint64(0xffffffff)) // = -1 in signed 32-bit integer.
|
|
} else {
|
|
ce.pushValue(uint64(res))
|
|
}
|
|
frame.pc++
|
|
case operationKindConstI32, operationKindConstI64,
|
|
operationKindConstF32, operationKindConstF64:
|
|
ce.pushValue(op.U1)
|
|
frame.pc++
|
|
case operationKindEq:
|
|
var b bool
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = uint32(v1) == uint32(v2)
|
|
case unsignedTypeI64:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = v1 == v2
|
|
case unsignedTypeF32:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = math.Float32frombits(uint32(v2)) == math.Float32frombits(uint32(v1))
|
|
case unsignedTypeF64:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = math.Float64frombits(v2) == math.Float64frombits(v1)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindNe:
|
|
var b bool
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32, unsignedTypeI64:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = v1 != v2
|
|
case unsignedTypeF32:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = math.Float32frombits(uint32(v2)) != math.Float32frombits(uint32(v1))
|
|
case unsignedTypeF64:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
b = math.Float64frombits(v2) != math.Float64frombits(v1)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindEqz:
|
|
if ce.popValue() == 0 {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindLt:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
var b bool
|
|
switch signedType(op.B1) {
|
|
case signedTypeInt32:
|
|
b = int32(v1) < int32(v2)
|
|
case signedTypeInt64:
|
|
b = int64(v1) < int64(v2)
|
|
case signedTypeUint32, signedTypeUint64:
|
|
b = v1 < v2
|
|
case signedTypeFloat32:
|
|
b = math.Float32frombits(uint32(v1)) < math.Float32frombits(uint32(v2))
|
|
case signedTypeFloat64:
|
|
b = math.Float64frombits(v1) < math.Float64frombits(v2)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindGt:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
var b bool
|
|
switch signedType(op.B1) {
|
|
case signedTypeInt32:
|
|
b = int32(v1) > int32(v2)
|
|
case signedTypeInt64:
|
|
b = int64(v1) > int64(v2)
|
|
case signedTypeUint32, signedTypeUint64:
|
|
b = v1 > v2
|
|
case signedTypeFloat32:
|
|
b = math.Float32frombits(uint32(v1)) > math.Float32frombits(uint32(v2))
|
|
case signedTypeFloat64:
|
|
b = math.Float64frombits(v1) > math.Float64frombits(v2)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindLe:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
var b bool
|
|
switch signedType(op.B1) {
|
|
case signedTypeInt32:
|
|
b = int32(v1) <= int32(v2)
|
|
case signedTypeInt64:
|
|
b = int64(v1) <= int64(v2)
|
|
case signedTypeUint32, signedTypeUint64:
|
|
b = v1 <= v2
|
|
case signedTypeFloat32:
|
|
b = math.Float32frombits(uint32(v1)) <= math.Float32frombits(uint32(v2))
|
|
case signedTypeFloat64:
|
|
b = math.Float64frombits(v1) <= math.Float64frombits(v2)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindGe:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
var b bool
|
|
switch signedType(op.B1) {
|
|
case signedTypeInt32:
|
|
b = int32(v1) >= int32(v2)
|
|
case signedTypeInt64:
|
|
b = int64(v1) >= int64(v2)
|
|
case signedTypeUint32, signedTypeUint64:
|
|
b = v1 >= v2
|
|
case signedTypeFloat32:
|
|
b = math.Float32frombits(uint32(v1)) >= math.Float32frombits(uint32(v2))
|
|
case signedTypeFloat64:
|
|
b = math.Float64frombits(v1) >= math.Float64frombits(v2)
|
|
}
|
|
if b {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindAdd:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
v := uint32(v1) + uint32(v2)
|
|
ce.pushValue(uint64(v))
|
|
case unsignedTypeI64:
|
|
ce.pushValue(v1 + v2)
|
|
case unsignedTypeF32:
|
|
ce.pushValue(addFloat32bits(uint32(v1), uint32(v2)))
|
|
case unsignedTypeF64:
|
|
v := math.Float64frombits(v1) + math.Float64frombits(v2)
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindSub:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
ce.pushValue(uint64(uint32(v1) - uint32(v2)))
|
|
case unsignedTypeI64:
|
|
ce.pushValue(v1 - v2)
|
|
case unsignedTypeF32:
|
|
ce.pushValue(subFloat32bits(uint32(v1), uint32(v2)))
|
|
case unsignedTypeF64:
|
|
v := math.Float64frombits(v1) - math.Float64frombits(v2)
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindMul:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
ce.pushValue(uint64(uint32(v1) * uint32(v2)))
|
|
case unsignedTypeI64:
|
|
ce.pushValue(v1 * v2)
|
|
case unsignedTypeF32:
|
|
ce.pushValue(mulFloat32bits(uint32(v1), uint32(v2)))
|
|
case unsignedTypeF64:
|
|
v := math.Float64frombits(v2) * math.Float64frombits(v1)
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindClz:
|
|
v := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(bits.LeadingZeros32(uint32(v))))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(bits.LeadingZeros64(v)))
|
|
}
|
|
frame.pc++
|
|
case operationKindCtz:
|
|
v := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(bits.TrailingZeros32(uint32(v))))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(bits.TrailingZeros64(v)))
|
|
}
|
|
frame.pc++
|
|
case operationKindPopcnt:
|
|
v := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(bits.OnesCount32(uint32(v))))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(bits.OnesCount64(v)))
|
|
}
|
|
frame.pc++
|
|
case operationKindDiv:
|
|
// If an integer, check we won't divide by zero.
|
|
t := signedType(op.B1)
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
switch t {
|
|
case signedTypeFloat32, signedTypeFloat64: // not integers
|
|
default:
|
|
if v2 == 0 {
|
|
panic(wasmruntime.ErrRuntimeIntegerDivideByZero)
|
|
}
|
|
}
|
|
|
|
switch t {
|
|
case signedTypeInt32:
|
|
d := int32(v2)
|
|
n := int32(v1)
|
|
if n == math.MinInt32 && d == -1 {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
ce.pushValue(uint64(uint32(n / d)))
|
|
case signedTypeInt64:
|
|
d := int64(v2)
|
|
n := int64(v1)
|
|
if n == math.MinInt64 && d == -1 {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
ce.pushValue(uint64(n / d))
|
|
case signedTypeUint32:
|
|
d := uint32(v2)
|
|
n := uint32(v1)
|
|
ce.pushValue(uint64(n / d))
|
|
case signedTypeUint64:
|
|
d := v2
|
|
n := v1
|
|
ce.pushValue(n / d)
|
|
case signedTypeFloat32:
|
|
ce.pushValue(divFloat32bits(uint32(v1), uint32(v2)))
|
|
case signedTypeFloat64:
|
|
ce.pushValue(math.Float64bits(math.Float64frombits(v1) / math.Float64frombits(v2)))
|
|
}
|
|
frame.pc++
|
|
case operationKindRem:
|
|
v2, v1 := ce.popValue(), ce.popValue()
|
|
if v2 == 0 {
|
|
panic(wasmruntime.ErrRuntimeIntegerDivideByZero)
|
|
}
|
|
switch signedInt(op.B1) {
|
|
case signedInt32:
|
|
d := int32(v2)
|
|
n := int32(v1)
|
|
ce.pushValue(uint64(uint32(n % d)))
|
|
case signedInt64:
|
|
d := int64(v2)
|
|
n := int64(v1)
|
|
ce.pushValue(uint64(n % d))
|
|
case signedUint32:
|
|
d := uint32(v2)
|
|
n := uint32(v1)
|
|
ce.pushValue(uint64(n % d))
|
|
case signedUint64:
|
|
d := v2
|
|
n := v1
|
|
ce.pushValue(n % d)
|
|
}
|
|
frame.pc++
|
|
case operationKindAnd:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(uint32(v2) & uint32(v1)))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(v2 & v1))
|
|
}
|
|
frame.pc++
|
|
case operationKindOr:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(uint32(v2) | uint32(v1)))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(v2 | v1))
|
|
}
|
|
frame.pc++
|
|
case operationKindXor:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(uint32(v2) ^ uint32(v1)))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(v2 ^ v1))
|
|
}
|
|
frame.pc++
|
|
case operationKindShl:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(uint32(v1) << (uint32(v2) % 32)))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(v1 << (v2 % 64))
|
|
}
|
|
frame.pc++
|
|
case operationKindShr:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
switch signedInt(op.B1) {
|
|
case signedInt32:
|
|
ce.pushValue(uint64(uint32(int32(v1) >> (uint32(v2) % 32))))
|
|
case signedInt64:
|
|
ce.pushValue(uint64(int64(v1) >> (v2 % 64)))
|
|
case signedUint32:
|
|
ce.pushValue(uint64(uint32(v1) >> (uint32(v2) % 32)))
|
|
case signedUint64:
|
|
ce.pushValue(v1 >> (v2 % 64))
|
|
}
|
|
frame.pc++
|
|
case operationKindRotl:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(bits.RotateLeft32(uint32(v1), int(v2))))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(bits.RotateLeft64(v1, int(v2))))
|
|
}
|
|
frame.pc++
|
|
case operationKindRotr:
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
if op.B1 == 0 {
|
|
// unsignedInt32
|
|
ce.pushValue(uint64(bits.RotateLeft32(uint32(v1), -int(v2))))
|
|
} else {
|
|
// unsignedInt64
|
|
ce.pushValue(uint64(bits.RotateLeft64(v1, -int(v2))))
|
|
}
|
|
frame.pc++
|
|
case operationKindAbs:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
const mask uint32 = 1 << 31
|
|
ce.pushValue(uint64(uint32(ce.popValue()) &^ mask))
|
|
} else {
|
|
// float64
|
|
const mask uint64 = 1 << 63
|
|
ce.pushValue(ce.popValue() &^ mask)
|
|
}
|
|
frame.pc++
|
|
case operationKindNeg:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v := -math.Float32frombits(uint32(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := -math.Float64frombits(ce.popValue())
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindCeil:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v := moremath.WasmCompatCeilF32(math.Float32frombits(uint32(ce.popValue())))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := moremath.WasmCompatCeilF64(math.Float64frombits(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindFloor:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v := moremath.WasmCompatFloorF32(math.Float32frombits(uint32(ce.popValue())))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := moremath.WasmCompatFloorF64(math.Float64frombits(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindTrunc:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v := moremath.WasmCompatTruncF32(math.Float32frombits(uint32(ce.popValue())))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := moremath.WasmCompatTruncF64(math.Float64frombits(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindNearest:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
f := math.Float32frombits(uint32(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(moremath.WasmCompatNearestF32(f))))
|
|
} else {
|
|
// float64
|
|
f := math.Float64frombits(ce.popValue())
|
|
ce.pushValue(math.Float64bits(moremath.WasmCompatNearestF64(f)))
|
|
}
|
|
frame.pc++
|
|
case operationKindSqrt:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v := math.Sqrt(float64(math.Float32frombits(uint32(ce.popValue()))))
|
|
ce.pushValue(uint64(math.Float32bits(float32(v))))
|
|
} else {
|
|
// float64
|
|
v := math.Sqrt(math.Float64frombits(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
frame.pc++
|
|
case operationKindMin:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
ce.pushValue(wasmCompatMin32bits(uint32(ce.popValue()), uint32(ce.popValue())))
|
|
} else {
|
|
v2 := math.Float64frombits(ce.popValue())
|
|
v1 := math.Float64frombits(ce.popValue())
|
|
ce.pushValue(math.Float64bits(moremath.WasmCompatMin64(v1, v2)))
|
|
}
|
|
frame.pc++
|
|
case operationKindMax:
|
|
if op.B1 == 0 {
|
|
ce.pushValue(wasmCompatMax32bits(uint32(ce.popValue()), uint32(ce.popValue())))
|
|
} else {
|
|
// float64
|
|
v2 := math.Float64frombits(ce.popValue())
|
|
v1 := math.Float64frombits(ce.popValue())
|
|
ce.pushValue(math.Float64bits(moremath.WasmCompatMax64(v1, v2)))
|
|
}
|
|
frame.pc++
|
|
case operationKindCopysign:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
v2 := uint32(ce.popValue())
|
|
v1 := uint32(ce.popValue())
|
|
const signbit = 1 << 31
|
|
ce.pushValue(uint64(v1&^signbit | v2&signbit))
|
|
} else {
|
|
// float64
|
|
v2 := ce.popValue()
|
|
v1 := ce.popValue()
|
|
const signbit = 1 << 63
|
|
ce.pushValue(v1&^signbit | v2&signbit)
|
|
}
|
|
frame.pc++
|
|
case operationKindI32WrapFromI64:
|
|
ce.pushValue(uint64(uint32(ce.popValue())))
|
|
frame.pc++
|
|
case operationKindITruncFromF:
|
|
if op.B1 == 0 {
|
|
// float32
|
|
switch signedInt(op.B2) {
|
|
case signedInt32:
|
|
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
v = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < math.MinInt32 || v > math.MaxInt32 {
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing sources.
|
|
if v < 0 {
|
|
v = math.MinInt32
|
|
} else {
|
|
v = math.MaxInt32
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(uint32(int32(v))))
|
|
case signedInt64:
|
|
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
|
|
res := int64(v)
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
res = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < math.MinInt64 || v >= math.MaxInt64 {
|
|
// Note: math.MaxInt64 is rounded up to math.MaxInt64+1 in 64-bit float representation,
|
|
// and that's why we use '>=' not '>' to check overflow.
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing sources.
|
|
if v < 0 {
|
|
res = math.MinInt64
|
|
} else {
|
|
res = math.MaxInt64
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(res))
|
|
case signedUint32:
|
|
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
v = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < 0 || v > math.MaxUint32 {
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
v = 0
|
|
} else {
|
|
v = math.MaxUint32
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(uint32(v)))
|
|
case signedUint64:
|
|
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
|
|
res := uint64(v)
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
res = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < 0 || v >= math.MaxUint64 {
|
|
// Note: math.MaxUint64 is rounded up to math.MaxUint64+1 in 64-bit float representation,
|
|
// and that's why we use '>=' not '>' to check overflow.
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
res = 0
|
|
} else {
|
|
res = math.MaxUint64
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(res)
|
|
}
|
|
} else {
|
|
// float64
|
|
switch signedInt(op.B2) {
|
|
case signedInt32:
|
|
v := math.Trunc(math.Float64frombits(ce.popValue()))
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
v = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < math.MinInt32 || v > math.MaxInt32 {
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
v = math.MinInt32
|
|
} else {
|
|
v = math.MaxInt32
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(uint32(int32(v))))
|
|
case signedInt64:
|
|
v := math.Trunc(math.Float64frombits(ce.popValue()))
|
|
res := int64(v)
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
res = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < math.MinInt64 || v >= math.MaxInt64 {
|
|
// Note: math.MaxInt64 is rounded up to math.MaxInt64+1 in 64-bit float representation,
|
|
// and that's why we use '>=' not '>' to check overflow.
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
res = math.MinInt64
|
|
} else {
|
|
res = math.MaxInt64
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(res))
|
|
case signedUint32:
|
|
v := math.Trunc(math.Float64frombits(ce.popValue()))
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
v = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < 0 || v > math.MaxUint32 {
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
v = 0
|
|
} else {
|
|
v = math.MaxUint32
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(uint64(uint32(v)))
|
|
case signedUint64:
|
|
v := math.Trunc(math.Float64frombits(ce.popValue()))
|
|
res := uint64(v)
|
|
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
|
|
if op.B3 {
|
|
// non-trapping conversion must cast nan to zero.
|
|
res = 0
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
|
|
}
|
|
} else if v < 0 || v >= math.MaxUint64 {
|
|
// Note: math.MaxUint64 is rounded up to math.MaxUint64+1 in 64-bit float representation,
|
|
// and that's why we use '>=' not '>' to check overflow.
|
|
if op.B3 {
|
|
// non-trapping conversion must "saturate" the value for overflowing source.
|
|
if v < 0 {
|
|
res = 0
|
|
} else {
|
|
res = math.MaxUint64
|
|
}
|
|
} else {
|
|
panic(wasmruntime.ErrRuntimeIntegerOverflow)
|
|
}
|
|
}
|
|
ce.pushValue(res)
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindFConvertFromI:
|
|
switch signedInt(op.B1) {
|
|
case signedInt32:
|
|
if op.B2 == 0 {
|
|
// float32
|
|
v := float32(int32(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := float64(int32(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
case signedInt64:
|
|
if op.B2 == 0 {
|
|
// float32
|
|
v := float32(int64(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := float64(int64(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
case signedUint32:
|
|
if op.B2 == 0 {
|
|
// float32
|
|
v := float32(uint32(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := float64(uint32(ce.popValue()))
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
case signedUint64:
|
|
if op.B2 == 0 {
|
|
// float32
|
|
v := float32(ce.popValue())
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
} else {
|
|
// float64
|
|
v := float64(ce.popValue())
|
|
ce.pushValue(math.Float64bits(v))
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindF32DemoteFromF64:
|
|
v := float32(math.Float64frombits(ce.popValue()))
|
|
ce.pushValue(uint64(math.Float32bits(v)))
|
|
frame.pc++
|
|
case operationKindF64PromoteFromF32:
|
|
v := float64(math.Float32frombits(uint32(ce.popValue())))
|
|
ce.pushValue(math.Float64bits(v))
|
|
frame.pc++
|
|
case operationKindExtend:
|
|
if op.B1 == 1 {
|
|
// Signed.
|
|
v := int64(int32(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
} else {
|
|
v := uint64(uint32(ce.popValue()))
|
|
ce.pushValue(v)
|
|
}
|
|
frame.pc++
|
|
case operationKindSignExtend32From8:
|
|
v := uint32(int8(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
frame.pc++
|
|
case operationKindSignExtend32From16:
|
|
v := uint32(int16(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
frame.pc++
|
|
case operationKindSignExtend64From8:
|
|
v := int64(int8(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
frame.pc++
|
|
case operationKindSignExtend64From16:
|
|
v := int64(int16(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
frame.pc++
|
|
case operationKindSignExtend64From32:
|
|
v := int64(int32(ce.popValue()))
|
|
ce.pushValue(uint64(v))
|
|
frame.pc++
|
|
case operationKindMemoryInit:
|
|
dataInstance := dataInstances[op.U1]
|
|
copySize := ce.popValue()
|
|
inDataOffset := ce.popValue()
|
|
inMemoryOffset := ce.popValue()
|
|
if inDataOffset+copySize > uint64(len(dataInstance)) ||
|
|
inMemoryOffset+copySize > uint64(len(memoryInst.Buffer)) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
} else if copySize != 0 {
|
|
copy(memoryInst.Buffer[inMemoryOffset:inMemoryOffset+copySize], dataInstance[inDataOffset:])
|
|
}
|
|
frame.pc++
|
|
case operationKindDataDrop:
|
|
dataInstances[op.U1] = nil
|
|
frame.pc++
|
|
case operationKindMemoryCopy:
|
|
memLen := uint64(len(memoryInst.Buffer))
|
|
copySize := ce.popValue()
|
|
sourceOffset := ce.popValue()
|
|
destinationOffset := ce.popValue()
|
|
if sourceOffset+copySize > memLen || destinationOffset+copySize > memLen {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
} else if copySize != 0 {
|
|
copy(memoryInst.Buffer[destinationOffset:],
|
|
memoryInst.Buffer[sourceOffset:sourceOffset+copySize])
|
|
}
|
|
frame.pc++
|
|
case operationKindMemoryFill:
|
|
fillSize := ce.popValue()
|
|
value := byte(ce.popValue())
|
|
offset := ce.popValue()
|
|
if fillSize+offset > uint64(len(memoryInst.Buffer)) {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
} else if fillSize != 0 {
|
|
// Uses the copy trick for faster filling buffer.
|
|
// https://gist.github.com/taylorza/df2f89d5f9ab3ffd06865062a4cf015d
|
|
buf := memoryInst.Buffer[offset : offset+fillSize]
|
|
buf[0] = value
|
|
for i := 1; i < len(buf); i *= 2 {
|
|
copy(buf[i:], buf[:i])
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindTableInit:
|
|
elementInstance := elementInstances[op.U1]
|
|
copySize := ce.popValue()
|
|
inElementOffset := ce.popValue()
|
|
inTableOffset := ce.popValue()
|
|
table := tables[op.U2]
|
|
if inElementOffset+copySize > uint64(len(elementInstance)) ||
|
|
inTableOffset+copySize > uint64(len(table.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
} else if copySize != 0 {
|
|
copy(table.References[inTableOffset:inTableOffset+copySize], elementInstance[inElementOffset:])
|
|
}
|
|
frame.pc++
|
|
case operationKindElemDrop:
|
|
elementInstances[op.U1] = nil
|
|
frame.pc++
|
|
case operationKindTableCopy:
|
|
srcTable, dstTable := tables[op.U1].References, tables[op.U2].References
|
|
copySize := ce.popValue()
|
|
sourceOffset := ce.popValue()
|
|
destinationOffset := ce.popValue()
|
|
if sourceOffset+copySize > uint64(len(srcTable)) || destinationOffset+copySize > uint64(len(dstTable)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
} else if copySize != 0 {
|
|
copy(dstTable[destinationOffset:], srcTable[sourceOffset:sourceOffset+copySize])
|
|
}
|
|
frame.pc++
|
|
case operationKindRefFunc:
|
|
ce.pushValue(uint64(uintptr(unsafe.Pointer(&functions[op.U1]))))
|
|
frame.pc++
|
|
case operationKindTableGet:
|
|
table := tables[op.U1]
|
|
|
|
offset := ce.popValue()
|
|
if offset >= uint64(len(table.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
|
|
ce.pushValue(uint64(table.References[offset]))
|
|
frame.pc++
|
|
case operationKindTableSet:
|
|
table := tables[op.U1]
|
|
ref := ce.popValue()
|
|
|
|
offset := ce.popValue()
|
|
if offset >= uint64(len(table.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
}
|
|
|
|
table.References[offset] = uintptr(ref) // externrefs are opaque uint64.
|
|
frame.pc++
|
|
case operationKindTableSize:
|
|
table := tables[op.U1]
|
|
ce.pushValue(uint64(len(table.References)))
|
|
frame.pc++
|
|
case operationKindTableGrow:
|
|
table := tables[op.U1]
|
|
num, ref := ce.popValue(), ce.popValue()
|
|
ret := table.Grow(uint32(num), uintptr(ref))
|
|
ce.pushValue(uint64(ret))
|
|
frame.pc++
|
|
case operationKindTableFill:
|
|
table := tables[op.U1]
|
|
num := ce.popValue()
|
|
ref := uintptr(ce.popValue())
|
|
offset := ce.popValue()
|
|
if num+offset > uint64(len(table.References)) {
|
|
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
|
|
} else if num > 0 {
|
|
// Uses the copy trick for faster filling the region with the value.
|
|
// https://gist.github.com/taylorza/df2f89d5f9ab3ffd06865062a4cf015d
|
|
targetRegion := table.References[offset : offset+num]
|
|
targetRegion[0] = ref
|
|
for i := 1; i < len(targetRegion); i *= 2 {
|
|
copy(targetRegion[i:], targetRegion[:i])
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindV128Const:
|
|
lo, hi := op.U1, op.U2
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Add:
|
|
yHigh, yLow := ce.popValue(), ce.popValue()
|
|
xHigh, xLow := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
ce.pushValue(
|
|
uint64(uint8(xLow>>8)+uint8(yLow>>8))<<8 | uint64(uint8(xLow)+uint8(yLow)) |
|
|
uint64(uint8(xLow>>24)+uint8(yLow>>24))<<24 | uint64(uint8(xLow>>16)+uint8(yLow>>16))<<16 |
|
|
uint64(uint8(xLow>>40)+uint8(yLow>>40))<<40 | uint64(uint8(xLow>>32)+uint8(yLow>>32))<<32 |
|
|
uint64(uint8(xLow>>56)+uint8(yLow>>56))<<56 | uint64(uint8(xLow>>48)+uint8(yLow>>48))<<48,
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint8(xHigh>>8)+uint8(yHigh>>8))<<8 | uint64(uint8(xHigh)+uint8(yHigh)) |
|
|
uint64(uint8(xHigh>>24)+uint8(yHigh>>24))<<24 | uint64(uint8(xHigh>>16)+uint8(yHigh>>16))<<16 |
|
|
uint64(uint8(xHigh>>40)+uint8(yHigh>>40))<<40 | uint64(uint8(xHigh>>32)+uint8(yHigh>>32))<<32 |
|
|
uint64(uint8(xHigh>>56)+uint8(yHigh>>56))<<56 | uint64(uint8(xHigh>>48)+uint8(yHigh>>48))<<48,
|
|
)
|
|
case shapeI16x8:
|
|
ce.pushValue(
|
|
uint64(uint16(xLow>>16+yLow>>16))<<16 | uint64(uint16(xLow)+uint16(yLow)) |
|
|
uint64(uint16(xLow>>48+yLow>>48))<<48 | uint64(uint16(xLow>>32+yLow>>32))<<32,
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint16(xHigh>>16)+uint16(yHigh>>16))<<16 | uint64(uint16(xHigh)+uint16(yHigh)) |
|
|
uint64(uint16(xHigh>>48)+uint16(yHigh>>48))<<48 | uint64(uint16(xHigh>>32)+uint16(yHigh>>32))<<32,
|
|
)
|
|
case shapeI32x4:
|
|
ce.pushValue(uint64(uint32(xLow>>32)+uint32(yLow>>32))<<32 | uint64(uint32(xLow)+uint32(yLow)))
|
|
ce.pushValue(uint64(uint32(xHigh>>32)+uint32(yHigh>>32))<<32 | uint64(uint32(xHigh)+uint32(yHigh)))
|
|
case shapeI64x2:
|
|
ce.pushValue(xLow + yLow)
|
|
ce.pushValue(xHigh + yHigh)
|
|
case shapeF32x4:
|
|
ce.pushValue(
|
|
addFloat32bits(uint32(xLow), uint32(yLow)) | addFloat32bits(uint32(xLow>>32), uint32(yLow>>32))<<32,
|
|
)
|
|
ce.pushValue(
|
|
addFloat32bits(uint32(xHigh), uint32(yHigh)) | addFloat32bits(uint32(xHigh>>32), uint32(yHigh>>32))<<32,
|
|
)
|
|
case shapeF64x2:
|
|
ce.pushValue(math.Float64bits(math.Float64frombits(xLow) + math.Float64frombits(yLow)))
|
|
ce.pushValue(math.Float64bits(math.Float64frombits(xHigh) + math.Float64frombits(yHigh)))
|
|
}
|
|
frame.pc++
|
|
case operationKindV128Sub:
|
|
yHigh, yLow := ce.popValue(), ce.popValue()
|
|
xHigh, xLow := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
ce.pushValue(
|
|
uint64(uint8(xLow>>8)-uint8(yLow>>8))<<8 | uint64(uint8(xLow)-uint8(yLow)) |
|
|
uint64(uint8(xLow>>24)-uint8(yLow>>24))<<24 | uint64(uint8(xLow>>16)-uint8(yLow>>16))<<16 |
|
|
uint64(uint8(xLow>>40)-uint8(yLow>>40))<<40 | uint64(uint8(xLow>>32)-uint8(yLow>>32))<<32 |
|
|
uint64(uint8(xLow>>56)-uint8(yLow>>56))<<56 | uint64(uint8(xLow>>48)-uint8(yLow>>48))<<48,
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint8(xHigh>>8)-uint8(yHigh>>8))<<8 | uint64(uint8(xHigh)-uint8(yHigh)) |
|
|
uint64(uint8(xHigh>>24)-uint8(yHigh>>24))<<24 | uint64(uint8(xHigh>>16)-uint8(yHigh>>16))<<16 |
|
|
uint64(uint8(xHigh>>40)-uint8(yHigh>>40))<<40 | uint64(uint8(xHigh>>32)-uint8(yHigh>>32))<<32 |
|
|
uint64(uint8(xHigh>>56)-uint8(yHigh>>56))<<56 | uint64(uint8(xHigh>>48)-uint8(yHigh>>48))<<48,
|
|
)
|
|
case shapeI16x8:
|
|
ce.pushValue(
|
|
uint64(uint16(xLow>>16)-uint16(yLow>>16))<<16 | uint64(uint16(xLow)-uint16(yLow)) |
|
|
uint64(uint16(xLow>>48)-uint16(yLow>>48))<<48 | uint64(uint16(xLow>>32)-uint16(yLow>>32))<<32,
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint16(xHigh>>16)-uint16(yHigh>>16))<<16 | uint64(uint16(xHigh)-uint16(yHigh)) |
|
|
uint64(uint16(xHigh>>48)-uint16(yHigh>>48))<<48 | uint64(uint16(xHigh>>32)-uint16(yHigh>>32))<<32,
|
|
)
|
|
case shapeI32x4:
|
|
ce.pushValue(uint64(uint32(xLow>>32-yLow>>32))<<32 | uint64(uint32(xLow)-uint32(yLow)))
|
|
ce.pushValue(uint64(uint32(xHigh>>32-yHigh>>32))<<32 | uint64(uint32(xHigh)-uint32(yHigh)))
|
|
case shapeI64x2:
|
|
ce.pushValue(xLow - yLow)
|
|
ce.pushValue(xHigh - yHigh)
|
|
case shapeF32x4:
|
|
ce.pushValue(
|
|
subFloat32bits(uint32(xLow), uint32(yLow)) | subFloat32bits(uint32(xLow>>32), uint32(yLow>>32))<<32,
|
|
)
|
|
ce.pushValue(
|
|
subFloat32bits(uint32(xHigh), uint32(yHigh)) | subFloat32bits(uint32(xHigh>>32), uint32(yHigh>>32))<<32,
|
|
)
|
|
case shapeF64x2:
|
|
ce.pushValue(math.Float64bits(math.Float64frombits(xLow) - math.Float64frombits(yLow)))
|
|
ce.pushValue(math.Float64bits(math.Float64frombits(xHigh) - math.Float64frombits(yHigh)))
|
|
}
|
|
frame.pc++
|
|
case operationKindV128Load:
|
|
offset := ce.popMemoryOffset(op)
|
|
switch op.B1 {
|
|
case v128LoadType128:
|
|
lo, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(lo)
|
|
hi, ok := memoryInst.ReadUint64Le(offset + 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(hi)
|
|
case v128LoadType8x8s:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(
|
|
uint64(uint16(int8(data[3])))<<48 | uint64(uint16(int8(data[2])))<<32 | uint64(uint16(int8(data[1])))<<16 | uint64(uint16(int8(data[0]))),
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint16(int8(data[7])))<<48 | uint64(uint16(int8(data[6])))<<32 | uint64(uint16(int8(data[5])))<<16 | uint64(uint16(int8(data[4]))),
|
|
)
|
|
case v128LoadType8x8u:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(
|
|
uint64(data[3])<<48 | uint64(data[2])<<32 | uint64(data[1])<<16 | uint64(data[0]),
|
|
)
|
|
ce.pushValue(
|
|
uint64(data[7])<<48 | uint64(data[6])<<32 | uint64(data[5])<<16 | uint64(data[4]),
|
|
)
|
|
case v128LoadType16x4s:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(
|
|
uint64(int16(binary.LittleEndian.Uint16(data[2:])))<<32 |
|
|
uint64(uint32(int16(binary.LittleEndian.Uint16(data)))),
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint32(int16(binary.LittleEndian.Uint16(data[6:]))))<<32 |
|
|
uint64(uint32(int16(binary.LittleEndian.Uint16(data[4:])))),
|
|
)
|
|
case v128LoadType16x4u:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(
|
|
uint64(binary.LittleEndian.Uint16(data[2:]))<<32 | uint64(binary.LittleEndian.Uint16(data)),
|
|
)
|
|
ce.pushValue(
|
|
uint64(binary.LittleEndian.Uint16(data[6:]))<<32 | uint64(binary.LittleEndian.Uint16(data[4:])),
|
|
)
|
|
case v128LoadType32x2s:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(int32(binary.LittleEndian.Uint32(data))))
|
|
ce.pushValue(uint64(int32(binary.LittleEndian.Uint32(data[4:]))))
|
|
case v128LoadType32x2u:
|
|
data, ok := memoryInst.Read(offset, 8)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(binary.LittleEndian.Uint32(data)))
|
|
ce.pushValue(uint64(binary.LittleEndian.Uint32(data[4:])))
|
|
case v128LoadType8Splat:
|
|
v, ok := memoryInst.ReadByte(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
v8 := uint64(v)<<56 | uint64(v)<<48 | uint64(v)<<40 | uint64(v)<<32 |
|
|
uint64(v)<<24 | uint64(v)<<16 | uint64(v)<<8 | uint64(v)
|
|
ce.pushValue(v8)
|
|
ce.pushValue(v8)
|
|
case v128LoadType16Splat:
|
|
v, ok := memoryInst.ReadUint16Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
v4 := uint64(v)<<48 | uint64(v)<<32 | uint64(v)<<16 | uint64(v)
|
|
ce.pushValue(v4)
|
|
ce.pushValue(v4)
|
|
case v128LoadType32Splat:
|
|
v, ok := memoryInst.ReadUint32Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
vv := uint64(v)<<32 | uint64(v)
|
|
ce.pushValue(vv)
|
|
ce.pushValue(vv)
|
|
case v128LoadType64Splat:
|
|
lo, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(lo)
|
|
case v128LoadType32zero:
|
|
lo, ok := memoryInst.ReadUint32Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(lo))
|
|
ce.pushValue(0)
|
|
case v128LoadType64zero:
|
|
lo, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindV128LoadLane:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
switch op.B1 {
|
|
case 8:
|
|
b, ok := memoryInst.ReadByte(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if op.B2 < 8 {
|
|
s := op.B2 << 3
|
|
lo = (lo & ^(0xff << s)) | uint64(b)<<s
|
|
} else {
|
|
s := (op.B2 - 8) << 3
|
|
hi = (hi & ^(0xff << s)) | uint64(b)<<s
|
|
}
|
|
case 16:
|
|
b, ok := memoryInst.ReadUint16Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if op.B2 < 4 {
|
|
s := op.B2 << 4
|
|
lo = (lo & ^(0xff_ff << s)) | uint64(b)<<s
|
|
} else {
|
|
s := (op.B2 - 4) << 4
|
|
hi = (hi & ^(0xff_ff << s)) | uint64(b)<<s
|
|
}
|
|
case 32:
|
|
b, ok := memoryInst.ReadUint32Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if op.B2 < 2 {
|
|
s := op.B2 << 5
|
|
lo = (lo & ^(0xff_ff_ff_ff << s)) | uint64(b)<<s
|
|
} else {
|
|
s := (op.B2 - 2) << 5
|
|
hi = (hi & ^(0xff_ff_ff_ff << s)) | uint64(b)<<s
|
|
}
|
|
case 64:
|
|
b, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if op.B2 == 0 {
|
|
lo = b
|
|
} else {
|
|
hi = b
|
|
}
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Store:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
// Write the upper bytes first to trigger an early error if the memory access is out of bounds.
|
|
// Otherwise, the lower bytes might be written to memory, but the upper bytes might not.
|
|
if uint64(offset)+8 > math.MaxUint32 {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if ok := memoryInst.WriteUint64Le(offset+8, hi); !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if ok := memoryInst.WriteUint64Le(offset, lo); !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindV128StoreLane:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
var ok bool
|
|
switch op.B1 {
|
|
case 8:
|
|
if op.B2 < 8 {
|
|
ok = memoryInst.WriteByte(offset, byte(lo>>(op.B2*8)))
|
|
} else {
|
|
ok = memoryInst.WriteByte(offset, byte(hi>>((op.B2-8)*8)))
|
|
}
|
|
case 16:
|
|
if op.B2 < 4 {
|
|
ok = memoryInst.WriteUint16Le(offset, uint16(lo>>(op.B2*16)))
|
|
} else {
|
|
ok = memoryInst.WriteUint16Le(offset, uint16(hi>>((op.B2-4)*16)))
|
|
}
|
|
case 32:
|
|
if op.B2 < 2 {
|
|
ok = memoryInst.WriteUint32Le(offset, uint32(lo>>(op.B2*32)))
|
|
} else {
|
|
ok = memoryInst.WriteUint32Le(offset, uint32(hi>>((op.B2-2)*32)))
|
|
}
|
|
case 64:
|
|
if op.B2 == 0 {
|
|
ok = memoryInst.WriteUint64Le(offset, lo)
|
|
} else {
|
|
ok = memoryInst.WriteUint64Le(offset, hi)
|
|
}
|
|
}
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindV128ReplaceLane:
|
|
v := ce.popValue()
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
if op.B2 < 8 {
|
|
s := op.B2 << 3
|
|
lo = (lo & ^(0xff << s)) | uint64(byte(v))<<s
|
|
} else {
|
|
s := (op.B2 - 8) << 3
|
|
hi = (hi & ^(0xff << s)) | uint64(byte(v))<<s
|
|
}
|
|
case shapeI16x8:
|
|
if op.B2 < 4 {
|
|
s := op.B2 << 4
|
|
lo = (lo & ^(0xff_ff << s)) | uint64(uint16(v))<<s
|
|
} else {
|
|
s := (op.B2 - 4) << 4
|
|
hi = (hi & ^(0xff_ff << s)) | uint64(uint16(v))<<s
|
|
}
|
|
case shapeI32x4, shapeF32x4:
|
|
if op.B2 < 2 {
|
|
s := op.B2 << 5
|
|
lo = (lo & ^(0xff_ff_ff_ff << s)) | uint64(uint32(v))<<s
|
|
} else {
|
|
s := (op.B2 - 2) << 5
|
|
hi = (hi & ^(0xff_ff_ff_ff << s)) | uint64(uint32(v))<<s
|
|
}
|
|
case shapeI64x2, shapeF64x2:
|
|
if op.B2 == 0 {
|
|
lo = v
|
|
} else {
|
|
hi = v
|
|
}
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128ExtractLane:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
var v uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
var u8 byte
|
|
if op.B2 < 8 {
|
|
u8 = byte(lo >> (op.B2 * 8))
|
|
} else {
|
|
u8 = byte(hi >> ((op.B2 - 8) * 8))
|
|
}
|
|
if op.B3 {
|
|
// sign-extend.
|
|
v = uint64(uint32(int8(u8)))
|
|
} else {
|
|
v = uint64(u8)
|
|
}
|
|
case shapeI16x8:
|
|
var u16 uint16
|
|
if op.B2 < 4 {
|
|
u16 = uint16(lo >> (op.B2 * 16))
|
|
} else {
|
|
u16 = uint16(hi >> ((op.B2 - 4) * 16))
|
|
}
|
|
if op.B3 {
|
|
// sign-extend.
|
|
v = uint64(uint32(int16(u16)))
|
|
} else {
|
|
v = uint64(u16)
|
|
}
|
|
case shapeI32x4, shapeF32x4:
|
|
if op.B2 < 2 {
|
|
v = uint64(uint32(lo >> (op.B2 * 32)))
|
|
} else {
|
|
v = uint64(uint32(hi >> ((op.B2 - 2) * 32)))
|
|
}
|
|
case shapeI64x2, shapeF64x2:
|
|
if op.B2 == 0 {
|
|
v = lo
|
|
} else {
|
|
v = hi
|
|
}
|
|
}
|
|
ce.pushValue(v)
|
|
frame.pc++
|
|
case operationKindV128Splat:
|
|
v := ce.popValue()
|
|
var hi, lo uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
v8 := uint64(byte(v))<<56 | uint64(byte(v))<<48 | uint64(byte(v))<<40 | uint64(byte(v))<<32 |
|
|
uint64(byte(v))<<24 | uint64(byte(v))<<16 | uint64(byte(v))<<8 | uint64(byte(v))
|
|
hi, lo = v8, v8
|
|
case shapeI16x8:
|
|
v4 := uint64(uint16(v))<<48 | uint64(uint16(v))<<32 | uint64(uint16(v))<<16 | uint64(uint16(v))
|
|
hi, lo = v4, v4
|
|
case shapeI32x4, shapeF32x4:
|
|
v2 := uint64(uint32(v))<<32 | uint64(uint32(v))
|
|
lo, hi = v2, v2
|
|
case shapeI64x2, shapeF64x2:
|
|
lo, hi = v, v
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Swizzle:
|
|
idxHi, idxLo := ce.popValue(), ce.popValue()
|
|
baseHi, baseLo := ce.popValue(), ce.popValue()
|
|
var newVal [16]byte
|
|
for i := 0; i < 16; i++ {
|
|
var id byte
|
|
if i < 8 {
|
|
id = byte(idxLo >> (i * 8))
|
|
} else {
|
|
id = byte(idxHi >> ((i - 8) * 8))
|
|
}
|
|
if id < 8 {
|
|
newVal[i] = byte(baseLo >> (id * 8))
|
|
} else if id < 16 {
|
|
newVal[i] = byte(baseHi >> ((id - 8) * 8))
|
|
}
|
|
}
|
|
ce.pushValue(binary.LittleEndian.Uint64(newVal[:8]))
|
|
ce.pushValue(binary.LittleEndian.Uint64(newVal[8:]))
|
|
frame.pc++
|
|
case operationKindV128Shuffle:
|
|
xHi, xLo, yHi, yLo := ce.popValue(), ce.popValue(), ce.popValue(), ce.popValue()
|
|
var newVal [16]byte
|
|
for i, l := range op.Us {
|
|
if l < 8 {
|
|
newVal[i] = byte(yLo >> (l * 8))
|
|
} else if l < 16 {
|
|
newVal[i] = byte(yHi >> ((l - 8) * 8))
|
|
} else if l < 24 {
|
|
newVal[i] = byte(xLo >> ((l - 16) * 8))
|
|
} else if l < 32 {
|
|
newVal[i] = byte(xHi >> ((l - 24) * 8))
|
|
}
|
|
}
|
|
ce.pushValue(binary.LittleEndian.Uint64(newVal[:8]))
|
|
ce.pushValue(binary.LittleEndian.Uint64(newVal[8:]))
|
|
frame.pc++
|
|
case operationKindV128AnyTrue:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if hi != 0 || lo != 0 {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindV128AllTrue:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
var ret bool
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
ret = (uint8(lo) != 0) && (uint8(lo>>8) != 0) && (uint8(lo>>16) != 0) && (uint8(lo>>24) != 0) &&
|
|
(uint8(lo>>32) != 0) && (uint8(lo>>40) != 0) && (uint8(lo>>48) != 0) && (uint8(lo>>56) != 0) &&
|
|
(uint8(hi) != 0) && (uint8(hi>>8) != 0) && (uint8(hi>>16) != 0) && (uint8(hi>>24) != 0) &&
|
|
(uint8(hi>>32) != 0) && (uint8(hi>>40) != 0) && (uint8(hi>>48) != 0) && (uint8(hi>>56) != 0)
|
|
case shapeI16x8:
|
|
ret = (uint16(lo) != 0) && (uint16(lo>>16) != 0) && (uint16(lo>>32) != 0) && (uint16(lo>>48) != 0) &&
|
|
(uint16(hi) != 0) && (uint16(hi>>16) != 0) && (uint16(hi>>32) != 0) && (uint16(hi>>48) != 0)
|
|
case shapeI32x4:
|
|
ret = (uint32(lo) != 0) && (uint32(lo>>32) != 0) &&
|
|
(uint32(hi) != 0) && (uint32(hi>>32) != 0)
|
|
case shapeI64x2:
|
|
ret = (lo != 0) &&
|
|
(hi != 0)
|
|
}
|
|
if ret {
|
|
ce.pushValue(1)
|
|
} else {
|
|
ce.pushValue(0)
|
|
}
|
|
frame.pc++
|
|
case operationKindV128BitMask:
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#bitmask-extraction
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
var res uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 8; i++ {
|
|
if int8(lo>>(i*8)) < 0 {
|
|
res |= 1 << i
|
|
}
|
|
}
|
|
for i := 0; i < 8; i++ {
|
|
if int8(hi>>(i*8)) < 0 {
|
|
res |= 1 << (i + 8)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 4; i++ {
|
|
if int16(lo>>(i*16)) < 0 {
|
|
res |= 1 << i
|
|
}
|
|
}
|
|
for i := 0; i < 4; i++ {
|
|
if int16(hi>>(i*16)) < 0 {
|
|
res |= 1 << (i + 4)
|
|
}
|
|
}
|
|
case shapeI32x4:
|
|
for i := 0; i < 2; i++ {
|
|
if int32(lo>>(i*32)) < 0 {
|
|
res |= 1 << i
|
|
}
|
|
}
|
|
for i := 0; i < 2; i++ {
|
|
if int32(hi>>(i*32)) < 0 {
|
|
res |= 1 << (i + 2)
|
|
}
|
|
}
|
|
case shapeI64x2:
|
|
if int64(lo) < 0 {
|
|
res |= 0b01
|
|
}
|
|
if int(hi) < 0 {
|
|
res |= 0b10
|
|
}
|
|
}
|
|
ce.pushValue(res)
|
|
frame.pc++
|
|
case operationKindV128And:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(x1Lo & x2Lo)
|
|
ce.pushValue(x1Hi & x2Hi)
|
|
frame.pc++
|
|
case operationKindV128Not:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(^lo)
|
|
ce.pushValue(^hi)
|
|
frame.pc++
|
|
case operationKindV128Or:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(x1Lo | x2Lo)
|
|
ce.pushValue(x1Hi | x2Hi)
|
|
frame.pc++
|
|
case operationKindV128Xor:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(x1Lo ^ x2Lo)
|
|
ce.pushValue(x1Hi ^ x2Hi)
|
|
frame.pc++
|
|
case operationKindV128Bitselect:
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#bitwise-select
|
|
cHi, cLo := ce.popValue(), ce.popValue()
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
// v128.or(v128.and(v1, c), v128.and(v2, v128.not(c)))
|
|
ce.pushValue((x1Lo & cLo) | (x2Lo & (^cLo)))
|
|
ce.pushValue((x1Hi & cHi) | (x2Hi & (^cHi)))
|
|
frame.pc++
|
|
case operationKindV128AndNot:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(x1Lo & (^x2Lo))
|
|
ce.pushValue(x1Hi & (^x2Hi))
|
|
frame.pc++
|
|
case operationKindV128Shl:
|
|
s := ce.popValue()
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
s = s % 8
|
|
lo = uint64(uint8(lo<<s)) |
|
|
uint64(uint8((lo>>8)<<s))<<8 |
|
|
uint64(uint8((lo>>16)<<s))<<16 |
|
|
uint64(uint8((lo>>24)<<s))<<24 |
|
|
uint64(uint8((lo>>32)<<s))<<32 |
|
|
uint64(uint8((lo>>40)<<s))<<40 |
|
|
uint64(uint8((lo>>48)<<s))<<48 |
|
|
uint64(uint8((lo>>56)<<s))<<56
|
|
hi = uint64(uint8(hi<<s)) |
|
|
uint64(uint8((hi>>8)<<s))<<8 |
|
|
uint64(uint8((hi>>16)<<s))<<16 |
|
|
uint64(uint8((hi>>24)<<s))<<24 |
|
|
uint64(uint8((hi>>32)<<s))<<32 |
|
|
uint64(uint8((hi>>40)<<s))<<40 |
|
|
uint64(uint8((hi>>48)<<s))<<48 |
|
|
uint64(uint8((hi>>56)<<s))<<56
|
|
case shapeI16x8:
|
|
s = s % 16
|
|
lo = uint64(uint16(lo<<s)) |
|
|
uint64(uint16((lo>>16)<<s))<<16 |
|
|
uint64(uint16((lo>>32)<<s))<<32 |
|
|
uint64(uint16((lo>>48)<<s))<<48
|
|
hi = uint64(uint16(hi<<s)) |
|
|
uint64(uint16((hi>>16)<<s))<<16 |
|
|
uint64(uint16((hi>>32)<<s))<<32 |
|
|
uint64(uint16((hi>>48)<<s))<<48
|
|
case shapeI32x4:
|
|
s = s % 32
|
|
lo = uint64(uint32(lo<<s)) | uint64(uint32((lo>>32)<<s))<<32
|
|
hi = uint64(uint32(hi<<s)) | uint64(uint32((hi>>32)<<s))<<32
|
|
case shapeI64x2:
|
|
s = s % 64
|
|
lo = lo << s
|
|
hi = hi << s
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Shr:
|
|
s := ce.popValue()
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
s = s % 8
|
|
if op.B3 { // signed
|
|
lo = uint64(uint8(int8(lo)>>s)) |
|
|
uint64(uint8(int8(lo>>8)>>s))<<8 |
|
|
uint64(uint8(int8(lo>>16)>>s))<<16 |
|
|
uint64(uint8(int8(lo>>24)>>s))<<24 |
|
|
uint64(uint8(int8(lo>>32)>>s))<<32 |
|
|
uint64(uint8(int8(lo>>40)>>s))<<40 |
|
|
uint64(uint8(int8(lo>>48)>>s))<<48 |
|
|
uint64(uint8(int8(lo>>56)>>s))<<56
|
|
hi = uint64(uint8(int8(hi)>>s)) |
|
|
uint64(uint8(int8(hi>>8)>>s))<<8 |
|
|
uint64(uint8(int8(hi>>16)>>s))<<16 |
|
|
uint64(uint8(int8(hi>>24)>>s))<<24 |
|
|
uint64(uint8(int8(hi>>32)>>s))<<32 |
|
|
uint64(uint8(int8(hi>>40)>>s))<<40 |
|
|
uint64(uint8(int8(hi>>48)>>s))<<48 |
|
|
uint64(uint8(int8(hi>>56)>>s))<<56
|
|
} else {
|
|
lo = uint64(uint8(lo)>>s) |
|
|
uint64(uint8(lo>>8)>>s)<<8 |
|
|
uint64(uint8(lo>>16)>>s)<<16 |
|
|
uint64(uint8(lo>>24)>>s)<<24 |
|
|
uint64(uint8(lo>>32)>>s)<<32 |
|
|
uint64(uint8(lo>>40)>>s)<<40 |
|
|
uint64(uint8(lo>>48)>>s)<<48 |
|
|
uint64(uint8(lo>>56)>>s)<<56
|
|
hi = uint64(uint8(hi)>>s) |
|
|
uint64(uint8(hi>>8)>>s)<<8 |
|
|
uint64(uint8(hi>>16)>>s)<<16 |
|
|
uint64(uint8(hi>>24)>>s)<<24 |
|
|
uint64(uint8(hi>>32)>>s)<<32 |
|
|
uint64(uint8(hi>>40)>>s)<<40 |
|
|
uint64(uint8(hi>>48)>>s)<<48 |
|
|
uint64(uint8(hi>>56)>>s)<<56
|
|
}
|
|
case shapeI16x8:
|
|
s = s % 16
|
|
if op.B3 { // signed
|
|
lo = uint64(uint16(int16(lo)>>s)) |
|
|
uint64(uint16(int16(lo>>16)>>s))<<16 |
|
|
uint64(uint16(int16(lo>>32)>>s))<<32 |
|
|
uint64(uint16(int16(lo>>48)>>s))<<48
|
|
hi = uint64(uint16(int16(hi)>>s)) |
|
|
uint64(uint16(int16(hi>>16)>>s))<<16 |
|
|
uint64(uint16(int16(hi>>32)>>s))<<32 |
|
|
uint64(uint16(int16(hi>>48)>>s))<<48
|
|
} else {
|
|
lo = uint64(uint16(lo)>>s) |
|
|
uint64(uint16(lo>>16)>>s)<<16 |
|
|
uint64(uint16(lo>>32)>>s)<<32 |
|
|
uint64(uint16(lo>>48)>>s)<<48
|
|
hi = uint64(uint16(hi)>>s) |
|
|
uint64(uint16(hi>>16)>>s)<<16 |
|
|
uint64(uint16(hi>>32)>>s)<<32 |
|
|
uint64(uint16(hi>>48)>>s)<<48
|
|
}
|
|
case shapeI32x4:
|
|
s = s % 32
|
|
if op.B3 {
|
|
lo = uint64(uint32(int32(lo)>>s)) | uint64(uint32(int32(lo>>32)>>s))<<32
|
|
hi = uint64(uint32(int32(hi)>>s)) | uint64(uint32(int32(hi>>32)>>s))<<32
|
|
} else {
|
|
lo = uint64(uint32(lo)>>s) | uint64(uint32(lo>>32)>>s)<<32
|
|
hi = uint64(uint32(hi)>>s) | uint64(uint32(hi>>32)>>s)<<32
|
|
}
|
|
case shapeI64x2:
|
|
s = s % 64
|
|
if op.B3 { // signed
|
|
lo = uint64(int64(lo) >> s)
|
|
hi = uint64(int64(hi) >> s)
|
|
} else {
|
|
lo = lo >> s
|
|
hi = hi >> s
|
|
}
|
|
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Cmp:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
var result []bool
|
|
switch op.B1 {
|
|
case v128CmpTypeI8x16Eq:
|
|
result = []bool{
|
|
byte(x1Lo>>0) == byte(x2Lo>>0), byte(x1Lo>>8) == byte(x2Lo>>8),
|
|
byte(x1Lo>>16) == byte(x2Lo>>16), byte(x1Lo>>24) == byte(x2Lo>>24),
|
|
byte(x1Lo>>32) == byte(x2Lo>>32), byte(x1Lo>>40) == byte(x2Lo>>40),
|
|
byte(x1Lo>>48) == byte(x2Lo>>48), byte(x1Lo>>56) == byte(x2Lo>>56),
|
|
byte(x1Hi>>0) == byte(x2Hi>>0), byte(x1Hi>>8) == byte(x2Hi>>8),
|
|
byte(x1Hi>>16) == byte(x2Hi>>16), byte(x1Hi>>24) == byte(x2Hi>>24),
|
|
byte(x1Hi>>32) == byte(x2Hi>>32), byte(x1Hi>>40) == byte(x2Hi>>40),
|
|
byte(x1Hi>>48) == byte(x2Hi>>48), byte(x1Hi>>56) == byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16Ne:
|
|
result = []bool{
|
|
byte(x1Lo>>0) != byte(x2Lo>>0), byte(x1Lo>>8) != byte(x2Lo>>8),
|
|
byte(x1Lo>>16) != byte(x2Lo>>16), byte(x1Lo>>24) != byte(x2Lo>>24),
|
|
byte(x1Lo>>32) != byte(x2Lo>>32), byte(x1Lo>>40) != byte(x2Lo>>40),
|
|
byte(x1Lo>>48) != byte(x2Lo>>48), byte(x1Lo>>56) != byte(x2Lo>>56),
|
|
byte(x1Hi>>0) != byte(x2Hi>>0), byte(x1Hi>>8) != byte(x2Hi>>8),
|
|
byte(x1Hi>>16) != byte(x2Hi>>16), byte(x1Hi>>24) != byte(x2Hi>>24),
|
|
byte(x1Hi>>32) != byte(x2Hi>>32), byte(x1Hi>>40) != byte(x2Hi>>40),
|
|
byte(x1Hi>>48) != byte(x2Hi>>48), byte(x1Hi>>56) != byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16LtS:
|
|
result = []bool{
|
|
int8(x1Lo>>0) < int8(x2Lo>>0), int8(x1Lo>>8) < int8(x2Lo>>8),
|
|
int8(x1Lo>>16) < int8(x2Lo>>16), int8(x1Lo>>24) < int8(x2Lo>>24),
|
|
int8(x1Lo>>32) < int8(x2Lo>>32), int8(x1Lo>>40) < int8(x2Lo>>40),
|
|
int8(x1Lo>>48) < int8(x2Lo>>48), int8(x1Lo>>56) < int8(x2Lo>>56),
|
|
int8(x1Hi>>0) < int8(x2Hi>>0), int8(x1Hi>>8) < int8(x2Hi>>8),
|
|
int8(x1Hi>>16) < int8(x2Hi>>16), int8(x1Hi>>24) < int8(x2Hi>>24),
|
|
int8(x1Hi>>32) < int8(x2Hi>>32), int8(x1Hi>>40) < int8(x2Hi>>40),
|
|
int8(x1Hi>>48) < int8(x2Hi>>48), int8(x1Hi>>56) < int8(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16LtU:
|
|
result = []bool{
|
|
byte(x1Lo>>0) < byte(x2Lo>>0), byte(x1Lo>>8) < byte(x2Lo>>8),
|
|
byte(x1Lo>>16) < byte(x2Lo>>16), byte(x1Lo>>24) < byte(x2Lo>>24),
|
|
byte(x1Lo>>32) < byte(x2Lo>>32), byte(x1Lo>>40) < byte(x2Lo>>40),
|
|
byte(x1Lo>>48) < byte(x2Lo>>48), byte(x1Lo>>56) < byte(x2Lo>>56),
|
|
byte(x1Hi>>0) < byte(x2Hi>>0), byte(x1Hi>>8) < byte(x2Hi>>8),
|
|
byte(x1Hi>>16) < byte(x2Hi>>16), byte(x1Hi>>24) < byte(x2Hi>>24),
|
|
byte(x1Hi>>32) < byte(x2Hi>>32), byte(x1Hi>>40) < byte(x2Hi>>40),
|
|
byte(x1Hi>>48) < byte(x2Hi>>48), byte(x1Hi>>56) < byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16GtS:
|
|
result = []bool{
|
|
int8(x1Lo>>0) > int8(x2Lo>>0), int8(x1Lo>>8) > int8(x2Lo>>8),
|
|
int8(x1Lo>>16) > int8(x2Lo>>16), int8(x1Lo>>24) > int8(x2Lo>>24),
|
|
int8(x1Lo>>32) > int8(x2Lo>>32), int8(x1Lo>>40) > int8(x2Lo>>40),
|
|
int8(x1Lo>>48) > int8(x2Lo>>48), int8(x1Lo>>56) > int8(x2Lo>>56),
|
|
int8(x1Hi>>0) > int8(x2Hi>>0), int8(x1Hi>>8) > int8(x2Hi>>8),
|
|
int8(x1Hi>>16) > int8(x2Hi>>16), int8(x1Hi>>24) > int8(x2Hi>>24),
|
|
int8(x1Hi>>32) > int8(x2Hi>>32), int8(x1Hi>>40) > int8(x2Hi>>40),
|
|
int8(x1Hi>>48) > int8(x2Hi>>48), int8(x1Hi>>56) > int8(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16GtU:
|
|
result = []bool{
|
|
byte(x1Lo>>0) > byte(x2Lo>>0), byte(x1Lo>>8) > byte(x2Lo>>8),
|
|
byte(x1Lo>>16) > byte(x2Lo>>16), byte(x1Lo>>24) > byte(x2Lo>>24),
|
|
byte(x1Lo>>32) > byte(x2Lo>>32), byte(x1Lo>>40) > byte(x2Lo>>40),
|
|
byte(x1Lo>>48) > byte(x2Lo>>48), byte(x1Lo>>56) > byte(x2Lo>>56),
|
|
byte(x1Hi>>0) > byte(x2Hi>>0), byte(x1Hi>>8) > byte(x2Hi>>8),
|
|
byte(x1Hi>>16) > byte(x2Hi>>16), byte(x1Hi>>24) > byte(x2Hi>>24),
|
|
byte(x1Hi>>32) > byte(x2Hi>>32), byte(x1Hi>>40) > byte(x2Hi>>40),
|
|
byte(x1Hi>>48) > byte(x2Hi>>48), byte(x1Hi>>56) > byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16LeS:
|
|
result = []bool{
|
|
int8(x1Lo>>0) <= int8(x2Lo>>0), int8(x1Lo>>8) <= int8(x2Lo>>8),
|
|
int8(x1Lo>>16) <= int8(x2Lo>>16), int8(x1Lo>>24) <= int8(x2Lo>>24),
|
|
int8(x1Lo>>32) <= int8(x2Lo>>32), int8(x1Lo>>40) <= int8(x2Lo>>40),
|
|
int8(x1Lo>>48) <= int8(x2Lo>>48), int8(x1Lo>>56) <= int8(x2Lo>>56),
|
|
int8(x1Hi>>0) <= int8(x2Hi>>0), int8(x1Hi>>8) <= int8(x2Hi>>8),
|
|
int8(x1Hi>>16) <= int8(x2Hi>>16), int8(x1Hi>>24) <= int8(x2Hi>>24),
|
|
int8(x1Hi>>32) <= int8(x2Hi>>32), int8(x1Hi>>40) <= int8(x2Hi>>40),
|
|
int8(x1Hi>>48) <= int8(x2Hi>>48), int8(x1Hi>>56) <= int8(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16LeU:
|
|
result = []bool{
|
|
byte(x1Lo>>0) <= byte(x2Lo>>0), byte(x1Lo>>8) <= byte(x2Lo>>8),
|
|
byte(x1Lo>>16) <= byte(x2Lo>>16), byte(x1Lo>>24) <= byte(x2Lo>>24),
|
|
byte(x1Lo>>32) <= byte(x2Lo>>32), byte(x1Lo>>40) <= byte(x2Lo>>40),
|
|
byte(x1Lo>>48) <= byte(x2Lo>>48), byte(x1Lo>>56) <= byte(x2Lo>>56),
|
|
byte(x1Hi>>0) <= byte(x2Hi>>0), byte(x1Hi>>8) <= byte(x2Hi>>8),
|
|
byte(x1Hi>>16) <= byte(x2Hi>>16), byte(x1Hi>>24) <= byte(x2Hi>>24),
|
|
byte(x1Hi>>32) <= byte(x2Hi>>32), byte(x1Hi>>40) <= byte(x2Hi>>40),
|
|
byte(x1Hi>>48) <= byte(x2Hi>>48), byte(x1Hi>>56) <= byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16GeS:
|
|
result = []bool{
|
|
int8(x1Lo>>0) >= int8(x2Lo>>0), int8(x1Lo>>8) >= int8(x2Lo>>8),
|
|
int8(x1Lo>>16) >= int8(x2Lo>>16), int8(x1Lo>>24) >= int8(x2Lo>>24),
|
|
int8(x1Lo>>32) >= int8(x2Lo>>32), int8(x1Lo>>40) >= int8(x2Lo>>40),
|
|
int8(x1Lo>>48) >= int8(x2Lo>>48), int8(x1Lo>>56) >= int8(x2Lo>>56),
|
|
int8(x1Hi>>0) >= int8(x2Hi>>0), int8(x1Hi>>8) >= int8(x2Hi>>8),
|
|
int8(x1Hi>>16) >= int8(x2Hi>>16), int8(x1Hi>>24) >= int8(x2Hi>>24),
|
|
int8(x1Hi>>32) >= int8(x2Hi>>32), int8(x1Hi>>40) >= int8(x2Hi>>40),
|
|
int8(x1Hi>>48) >= int8(x2Hi>>48), int8(x1Hi>>56) >= int8(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI8x16GeU:
|
|
result = []bool{
|
|
byte(x1Lo>>0) >= byte(x2Lo>>0), byte(x1Lo>>8) >= byte(x2Lo>>8),
|
|
byte(x1Lo>>16) >= byte(x2Lo>>16), byte(x1Lo>>24) >= byte(x2Lo>>24),
|
|
byte(x1Lo>>32) >= byte(x2Lo>>32), byte(x1Lo>>40) >= byte(x2Lo>>40),
|
|
byte(x1Lo>>48) >= byte(x2Lo>>48), byte(x1Lo>>56) >= byte(x2Lo>>56),
|
|
byte(x1Hi>>0) >= byte(x2Hi>>0), byte(x1Hi>>8) >= byte(x2Hi>>8),
|
|
byte(x1Hi>>16) >= byte(x2Hi>>16), byte(x1Hi>>24) >= byte(x2Hi>>24),
|
|
byte(x1Hi>>32) >= byte(x2Hi>>32), byte(x1Hi>>40) >= byte(x2Hi>>40),
|
|
byte(x1Hi>>48) >= byte(x2Hi>>48), byte(x1Hi>>56) >= byte(x2Hi>>56),
|
|
}
|
|
case v128CmpTypeI16x8Eq:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) == uint16(x2Lo>>0), uint16(x1Lo>>16) == uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) == uint16(x2Lo>>32), uint16(x1Lo>>48) == uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) == uint16(x2Hi>>0), uint16(x1Hi>>16) == uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) == uint16(x2Hi>>32), uint16(x1Hi>>48) == uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8Ne:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) != uint16(x2Lo>>0), uint16(x1Lo>>16) != uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) != uint16(x2Lo>>32), uint16(x1Lo>>48) != uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) != uint16(x2Hi>>0), uint16(x1Hi>>16) != uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) != uint16(x2Hi>>32), uint16(x1Hi>>48) != uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8LtS:
|
|
result = []bool{
|
|
int16(x1Lo>>0) < int16(x2Lo>>0), int16(x1Lo>>16) < int16(x2Lo>>16),
|
|
int16(x1Lo>>32) < int16(x2Lo>>32), int16(x1Lo>>48) < int16(x2Lo>>48),
|
|
int16(x1Hi>>0) < int16(x2Hi>>0), int16(x1Hi>>16) < int16(x2Hi>>16),
|
|
int16(x1Hi>>32) < int16(x2Hi>>32), int16(x1Hi>>48) < int16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8LtU:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) < uint16(x2Lo>>0), uint16(x1Lo>>16) < uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) < uint16(x2Lo>>32), uint16(x1Lo>>48) < uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) < uint16(x2Hi>>0), uint16(x1Hi>>16) < uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) < uint16(x2Hi>>32), uint16(x1Hi>>48) < uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8GtS:
|
|
result = []bool{
|
|
int16(x1Lo>>0) > int16(x2Lo>>0), int16(x1Lo>>16) > int16(x2Lo>>16),
|
|
int16(x1Lo>>32) > int16(x2Lo>>32), int16(x1Lo>>48) > int16(x2Lo>>48),
|
|
int16(x1Hi>>0) > int16(x2Hi>>0), int16(x1Hi>>16) > int16(x2Hi>>16),
|
|
int16(x1Hi>>32) > int16(x2Hi>>32), int16(x1Hi>>48) > int16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8GtU:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) > uint16(x2Lo>>0), uint16(x1Lo>>16) > uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) > uint16(x2Lo>>32), uint16(x1Lo>>48) > uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) > uint16(x2Hi>>0), uint16(x1Hi>>16) > uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) > uint16(x2Hi>>32), uint16(x1Hi>>48) > uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8LeS:
|
|
result = []bool{
|
|
int16(x1Lo>>0) <= int16(x2Lo>>0), int16(x1Lo>>16) <= int16(x2Lo>>16),
|
|
int16(x1Lo>>32) <= int16(x2Lo>>32), int16(x1Lo>>48) <= int16(x2Lo>>48),
|
|
int16(x1Hi>>0) <= int16(x2Hi>>0), int16(x1Hi>>16) <= int16(x2Hi>>16),
|
|
int16(x1Hi>>32) <= int16(x2Hi>>32), int16(x1Hi>>48) <= int16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8LeU:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) <= uint16(x2Lo>>0), uint16(x1Lo>>16) <= uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) <= uint16(x2Lo>>32), uint16(x1Lo>>48) <= uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) <= uint16(x2Hi>>0), uint16(x1Hi>>16) <= uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) <= uint16(x2Hi>>32), uint16(x1Hi>>48) <= uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8GeS:
|
|
result = []bool{
|
|
int16(x1Lo>>0) >= int16(x2Lo>>0), int16(x1Lo>>16) >= int16(x2Lo>>16),
|
|
int16(x1Lo>>32) >= int16(x2Lo>>32), int16(x1Lo>>48) >= int16(x2Lo>>48),
|
|
int16(x1Hi>>0) >= int16(x2Hi>>0), int16(x1Hi>>16) >= int16(x2Hi>>16),
|
|
int16(x1Hi>>32) >= int16(x2Hi>>32), int16(x1Hi>>48) >= int16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI16x8GeU:
|
|
result = []bool{
|
|
uint16(x1Lo>>0) >= uint16(x2Lo>>0), uint16(x1Lo>>16) >= uint16(x2Lo>>16),
|
|
uint16(x1Lo>>32) >= uint16(x2Lo>>32), uint16(x1Lo>>48) >= uint16(x2Lo>>48),
|
|
uint16(x1Hi>>0) >= uint16(x2Hi>>0), uint16(x1Hi>>16) >= uint16(x2Hi>>16),
|
|
uint16(x1Hi>>32) >= uint16(x2Hi>>32), uint16(x1Hi>>48) >= uint16(x2Hi>>48),
|
|
}
|
|
case v128CmpTypeI32x4Eq:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) == uint32(x2Lo>>0), uint32(x1Lo>>32) == uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) == uint32(x2Hi>>0), uint32(x1Hi>>32) == uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4Ne:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) != uint32(x2Lo>>0), uint32(x1Lo>>32) != uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) != uint32(x2Hi>>0), uint32(x1Hi>>32) != uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4LtS:
|
|
result = []bool{
|
|
int32(x1Lo>>0) < int32(x2Lo>>0), int32(x1Lo>>32) < int32(x2Lo>>32),
|
|
int32(x1Hi>>0) < int32(x2Hi>>0), int32(x1Hi>>32) < int32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4LtU:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) < uint32(x2Lo>>0), uint32(x1Lo>>32) < uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) < uint32(x2Hi>>0), uint32(x1Hi>>32) < uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4GtS:
|
|
result = []bool{
|
|
int32(x1Lo>>0) > int32(x2Lo>>0), int32(x1Lo>>32) > int32(x2Lo>>32),
|
|
int32(x1Hi>>0) > int32(x2Hi>>0), int32(x1Hi>>32) > int32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4GtU:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) > uint32(x2Lo>>0), uint32(x1Lo>>32) > uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) > uint32(x2Hi>>0), uint32(x1Hi>>32) > uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4LeS:
|
|
result = []bool{
|
|
int32(x1Lo>>0) <= int32(x2Lo>>0), int32(x1Lo>>32) <= int32(x2Lo>>32),
|
|
int32(x1Hi>>0) <= int32(x2Hi>>0), int32(x1Hi>>32) <= int32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4LeU:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) <= uint32(x2Lo>>0), uint32(x1Lo>>32) <= uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) <= uint32(x2Hi>>0), uint32(x1Hi>>32) <= uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4GeS:
|
|
result = []bool{
|
|
int32(x1Lo>>0) >= int32(x2Lo>>0), int32(x1Lo>>32) >= int32(x2Lo>>32),
|
|
int32(x1Hi>>0) >= int32(x2Hi>>0), int32(x1Hi>>32) >= int32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI32x4GeU:
|
|
result = []bool{
|
|
uint32(x1Lo>>0) >= uint32(x2Lo>>0), uint32(x1Lo>>32) >= uint32(x2Lo>>32),
|
|
uint32(x1Hi>>0) >= uint32(x2Hi>>0), uint32(x1Hi>>32) >= uint32(x2Hi>>32),
|
|
}
|
|
case v128CmpTypeI64x2Eq:
|
|
result = []bool{x1Lo == x2Lo, x1Hi == x2Hi}
|
|
case v128CmpTypeI64x2Ne:
|
|
result = []bool{x1Lo != x2Lo, x1Hi != x2Hi}
|
|
case v128CmpTypeI64x2LtS:
|
|
result = []bool{int64(x1Lo) < int64(x2Lo), int64(x1Hi) < int64(x2Hi)}
|
|
case v128CmpTypeI64x2GtS:
|
|
result = []bool{int64(x1Lo) > int64(x2Lo), int64(x1Hi) > int64(x2Hi)}
|
|
case v128CmpTypeI64x2LeS:
|
|
result = []bool{int64(x1Lo) <= int64(x2Lo), int64(x1Hi) <= int64(x2Hi)}
|
|
case v128CmpTypeI64x2GeS:
|
|
result = []bool{int64(x1Lo) >= int64(x2Lo), int64(x1Hi) >= int64(x2Hi)}
|
|
case v128CmpTypeF32x4Eq:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) == math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) == math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) == math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) == math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF32x4Ne:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) != math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) != math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) != math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) != math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF32x4Lt:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) < math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) < math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) < math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) < math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF32x4Gt:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) > math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) > math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) > math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) > math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF32x4Le:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) <= math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) <= math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) <= math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) <= math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF32x4Ge:
|
|
result = []bool{
|
|
math.Float32frombits(uint32(x1Lo>>0)) >= math.Float32frombits(uint32(x2Lo>>0)),
|
|
math.Float32frombits(uint32(x1Lo>>32)) >= math.Float32frombits(uint32(x2Lo>>32)),
|
|
math.Float32frombits(uint32(x1Hi>>0)) >= math.Float32frombits(uint32(x2Hi>>0)),
|
|
math.Float32frombits(uint32(x1Hi>>32)) >= math.Float32frombits(uint32(x2Hi>>32)),
|
|
}
|
|
case v128CmpTypeF64x2Eq:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) == math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) == math.Float64frombits(x2Hi),
|
|
}
|
|
case v128CmpTypeF64x2Ne:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) != math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) != math.Float64frombits(x2Hi),
|
|
}
|
|
case v128CmpTypeF64x2Lt:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) < math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) < math.Float64frombits(x2Hi),
|
|
}
|
|
case v128CmpTypeF64x2Gt:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) > math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) > math.Float64frombits(x2Hi),
|
|
}
|
|
case v128CmpTypeF64x2Le:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) <= math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) <= math.Float64frombits(x2Hi),
|
|
}
|
|
case v128CmpTypeF64x2Ge:
|
|
result = []bool{
|
|
math.Float64frombits(x1Lo) >= math.Float64frombits(x2Lo),
|
|
math.Float64frombits(x1Hi) >= math.Float64frombits(x2Hi),
|
|
}
|
|
}
|
|
|
|
var retLo, retHi uint64
|
|
laneNum := len(result)
|
|
switch laneNum {
|
|
case 16:
|
|
for i, b := range result {
|
|
if b {
|
|
if i < 8 {
|
|
retLo |= 0xff << (i * 8)
|
|
} else {
|
|
retHi |= 0xff << ((i - 8) * 8)
|
|
}
|
|
}
|
|
}
|
|
case 8:
|
|
for i, b := range result {
|
|
if b {
|
|
if i < 4 {
|
|
retLo |= 0xffff << (i * 16)
|
|
} else {
|
|
retHi |= 0xffff << ((i - 4) * 16)
|
|
}
|
|
}
|
|
}
|
|
case 4:
|
|
for i, b := range result {
|
|
if b {
|
|
if i < 2 {
|
|
retLo |= 0xffff_ffff << (i * 32)
|
|
} else {
|
|
retHi |= 0xffff_ffff << ((i - 2) * 32)
|
|
}
|
|
}
|
|
}
|
|
case 2:
|
|
if result[0] {
|
|
retLo = ^uint64(0)
|
|
}
|
|
if result[1] {
|
|
retHi = ^uint64(0)
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128AddSat:
|
|
x2hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1Lo := ce.popValue(), ce.popValue()
|
|
|
|
var retLo, retHi uint64
|
|
|
|
// Lane-wise addition while saturating the overflowing values.
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#saturating-integer-addition
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 16; i++ {
|
|
var v, w byte
|
|
if i < 8 {
|
|
v, w = byte(x1Lo>>(i*8)), byte(x2Lo>>(i*8))
|
|
} else {
|
|
v, w = byte(x1hi>>((i-8)*8)), byte(x2hi>>((i-8)*8))
|
|
}
|
|
|
|
var uv uint64
|
|
if op.B3 { // signed
|
|
if subbed := int64(int8(v)) + int64(int8(w)); subbed < math.MinInt8 {
|
|
uv = uint64(byte(0x80))
|
|
} else if subbed > math.MaxInt8 {
|
|
uv = uint64(byte(0x7f))
|
|
} else {
|
|
uv = uint64(byte(int8(subbed)))
|
|
}
|
|
} else {
|
|
if subbed := int64(v) + int64(w); subbed < 0 {
|
|
uv = uint64(byte(0))
|
|
} else if subbed > math.MaxUint8 {
|
|
uv = uint64(byte(0xff))
|
|
} else {
|
|
uv = uint64(byte(subbed))
|
|
}
|
|
}
|
|
|
|
if i < 8 { // first 8 lanes are on lower 64bits.
|
|
retLo |= uv << (i * 8)
|
|
} else {
|
|
retHi |= uv << ((i - 8) * 8)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 8; i++ {
|
|
var v, w uint16
|
|
if i < 4 {
|
|
v, w = uint16(x1Lo>>(i*16)), uint16(x2Lo>>(i*16))
|
|
} else {
|
|
v, w = uint16(x1hi>>((i-4)*16)), uint16(x2hi>>((i-4)*16))
|
|
}
|
|
|
|
var uv uint64
|
|
if op.B3 { // signed
|
|
if added := int64(int16(v)) + int64(int16(w)); added < math.MinInt16 {
|
|
uv = uint64(uint16(0x8000))
|
|
} else if added > math.MaxInt16 {
|
|
uv = uint64(uint16(0x7fff))
|
|
} else {
|
|
uv = uint64(uint16(int16(added)))
|
|
}
|
|
} else {
|
|
if added := int64(v) + int64(w); added < 0 {
|
|
uv = uint64(uint16(0))
|
|
} else if added > math.MaxUint16 {
|
|
uv = uint64(uint16(0xffff))
|
|
} else {
|
|
uv = uint64(uint16(added))
|
|
}
|
|
}
|
|
|
|
if i < 4 { // first 4 lanes are on lower 64bits.
|
|
retLo |= uv << (i * 16)
|
|
} else {
|
|
retHi |= uv << ((i - 4) * 16)
|
|
}
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128SubSat:
|
|
x2hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1Lo := ce.popValue(), ce.popValue()
|
|
|
|
var retLo, retHi uint64
|
|
|
|
// Lane-wise subtraction while saturating the overflowing values.
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#saturating-integer-subtraction
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 16; i++ {
|
|
var v, w byte
|
|
if i < 8 {
|
|
v, w = byte(x1Lo>>(i*8)), byte(x2Lo>>(i*8))
|
|
} else {
|
|
v, w = byte(x1hi>>((i-8)*8)), byte(x2hi>>((i-8)*8))
|
|
}
|
|
|
|
var uv uint64
|
|
if op.B3 { // signed
|
|
if subbed := int64(int8(v)) - int64(int8(w)); subbed < math.MinInt8 {
|
|
uv = uint64(byte(0x80))
|
|
} else if subbed > math.MaxInt8 {
|
|
uv = uint64(byte(0x7f))
|
|
} else {
|
|
uv = uint64(byte(int8(subbed)))
|
|
}
|
|
} else {
|
|
if subbed := int64(v) - int64(w); subbed < 0 {
|
|
uv = uint64(byte(0))
|
|
} else if subbed > math.MaxUint8 {
|
|
uv = uint64(byte(0xff))
|
|
} else {
|
|
uv = uint64(byte(subbed))
|
|
}
|
|
}
|
|
|
|
if i < 8 {
|
|
retLo |= uv << (i * 8)
|
|
} else {
|
|
retHi |= uv << ((i - 8) * 8)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 8; i++ {
|
|
var v, w uint16
|
|
if i < 4 {
|
|
v, w = uint16(x1Lo>>(i*16)), uint16(x2Lo>>(i*16))
|
|
} else {
|
|
v, w = uint16(x1hi>>((i-4)*16)), uint16(x2hi>>((i-4)*16))
|
|
}
|
|
|
|
var uv uint64
|
|
if op.B3 { // signed
|
|
if subbed := int64(int16(v)) - int64(int16(w)); subbed < math.MinInt16 {
|
|
uv = uint64(uint16(0x8000))
|
|
} else if subbed > math.MaxInt16 {
|
|
uv = uint64(uint16(0x7fff))
|
|
} else {
|
|
uv = uint64(uint16(int16(subbed)))
|
|
}
|
|
} else {
|
|
if subbed := int64(v) - int64(w); subbed < 0 {
|
|
uv = uint64(uint16(0))
|
|
} else if subbed > math.MaxUint16 {
|
|
uv = uint64(uint16(0xffff))
|
|
} else {
|
|
uv = uint64(uint16(subbed))
|
|
}
|
|
}
|
|
|
|
if i < 4 {
|
|
retLo |= uv << (i * 16)
|
|
} else {
|
|
retHi |= uv << ((i - 4) * 16)
|
|
}
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Mul:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI16x8:
|
|
retHi = uint64(uint16(x1hi)*uint16(x2hi)) | (uint64(uint16(x1hi>>16)*uint16(x2hi>>16)) << 16) |
|
|
(uint64(uint16(x1hi>>32)*uint16(x2hi>>32)) << 32) | (uint64(uint16(x1hi>>48)*uint16(x2hi>>48)) << 48)
|
|
retLo = uint64(uint16(x1lo)*uint16(x2lo)) | (uint64(uint16(x1lo>>16)*uint16(x2lo>>16)) << 16) |
|
|
(uint64(uint16(x1lo>>32)*uint16(x2lo>>32)) << 32) | (uint64(uint16(x1lo>>48)*uint16(x2lo>>48)) << 48)
|
|
case shapeI32x4:
|
|
retHi = uint64(uint32(x1hi)*uint32(x2hi)) | (uint64(uint32(x1hi>>32)*uint32(x2hi>>32)) << 32)
|
|
retLo = uint64(uint32(x1lo)*uint32(x2lo)) | (uint64(uint32(x1lo>>32)*uint32(x2lo>>32)) << 32)
|
|
case shapeI64x2:
|
|
retHi = x1hi * x2hi
|
|
retLo = x1lo * x2lo
|
|
case shapeF32x4:
|
|
retHi = mulFloat32bits(uint32(x1hi), uint32(x2hi)) | mulFloat32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
|
|
retLo = mulFloat32bits(uint32(x1lo), uint32(x2lo)) | mulFloat32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
|
|
case shapeF64x2:
|
|
retHi = math.Float64bits(math.Float64frombits(x1hi) * math.Float64frombits(x2hi))
|
|
retLo = math.Float64bits(math.Float64frombits(x1lo) * math.Float64frombits(x2lo))
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Div:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
if op.B1 == shapeF64x2 {
|
|
retHi = math.Float64bits(math.Float64frombits(x1hi) / math.Float64frombits(x2hi))
|
|
retLo = math.Float64bits(math.Float64frombits(x1lo) / math.Float64frombits(x2lo))
|
|
} else {
|
|
retHi = divFloat32bits(uint32(x1hi), uint32(x2hi)) | divFloat32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
|
|
retLo = divFloat32bits(uint32(x1lo), uint32(x2lo)) | divFloat32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Neg:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
lo = uint64(-byte(lo)) | (uint64(-byte(lo>>8)) << 8) |
|
|
(uint64(-byte(lo>>16)) << 16) | (uint64(-byte(lo>>24)) << 24) |
|
|
(uint64(-byte(lo>>32)) << 32) | (uint64(-byte(lo>>40)) << 40) |
|
|
(uint64(-byte(lo>>48)) << 48) | (uint64(-byte(lo>>56)) << 56)
|
|
hi = uint64(-byte(hi)) | (uint64(-byte(hi>>8)) << 8) |
|
|
(uint64(-byte(hi>>16)) << 16) | (uint64(-byte(hi>>24)) << 24) |
|
|
(uint64(-byte(hi>>32)) << 32) | (uint64(-byte(hi>>40)) << 40) |
|
|
(uint64(-byte(hi>>48)) << 48) | (uint64(-byte(hi>>56)) << 56)
|
|
case shapeI16x8:
|
|
hi = uint64(-uint16(hi)) | (uint64(-uint16(hi>>16)) << 16) |
|
|
(uint64(-uint16(hi>>32)) << 32) | (uint64(-uint16(hi>>48)) << 48)
|
|
lo = uint64(-uint16(lo)) | (uint64(-uint16(lo>>16)) << 16) |
|
|
(uint64(-uint16(lo>>32)) << 32) | (uint64(-uint16(lo>>48)) << 48)
|
|
case shapeI32x4:
|
|
hi = uint64(-uint32(hi)) | (uint64(-uint32(hi>>32)) << 32)
|
|
lo = uint64(-uint32(lo)) | (uint64(-uint32(lo>>32)) << 32)
|
|
case shapeI64x2:
|
|
hi = -hi
|
|
lo = -lo
|
|
case shapeF32x4:
|
|
hi = uint64(math.Float32bits(-math.Float32frombits(uint32(hi)))) |
|
|
(uint64(math.Float32bits(-math.Float32frombits(uint32(hi>>32)))) << 32)
|
|
lo = uint64(math.Float32bits(-math.Float32frombits(uint32(lo)))) |
|
|
(uint64(math.Float32bits(-math.Float32frombits(uint32(lo>>32)))) << 32)
|
|
case shapeF64x2:
|
|
hi = math.Float64bits(-math.Float64frombits(hi))
|
|
lo = math.Float64bits(-math.Float64frombits(lo))
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Sqrt:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if op.B1 == shapeF64x2 {
|
|
hi = math.Float64bits(math.Sqrt(math.Float64frombits(hi)))
|
|
lo = math.Float64bits(math.Sqrt(math.Float64frombits(lo)))
|
|
} else {
|
|
hi = uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(hi))))))) |
|
|
(uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(hi>>32))))))) << 32)
|
|
lo = uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(lo))))))) |
|
|
(uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(lo>>32))))))) << 32)
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Abs:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
lo = uint64(i8Abs(byte(lo))) | (uint64(i8Abs(byte(lo>>8))) << 8) |
|
|
(uint64(i8Abs(byte(lo>>16))) << 16) | (uint64(i8Abs(byte(lo>>24))) << 24) |
|
|
(uint64(i8Abs(byte(lo>>32))) << 32) | (uint64(i8Abs(byte(lo>>40))) << 40) |
|
|
(uint64(i8Abs(byte(lo>>48))) << 48) | (uint64(i8Abs(byte(lo>>56))) << 56)
|
|
hi = uint64(i8Abs(byte(hi))) | (uint64(i8Abs(byte(hi>>8))) << 8) |
|
|
(uint64(i8Abs(byte(hi>>16))) << 16) | (uint64(i8Abs(byte(hi>>24))) << 24) |
|
|
(uint64(i8Abs(byte(hi>>32))) << 32) | (uint64(i8Abs(byte(hi>>40))) << 40) |
|
|
(uint64(i8Abs(byte(hi>>48))) << 48) | (uint64(i8Abs(byte(hi>>56))) << 56)
|
|
case shapeI16x8:
|
|
hi = uint64(i16Abs(uint16(hi))) | (uint64(i16Abs(uint16(hi>>16))) << 16) |
|
|
(uint64(i16Abs(uint16(hi>>32))) << 32) | (uint64(i16Abs(uint16(hi>>48))) << 48)
|
|
lo = uint64(i16Abs(uint16(lo))) | (uint64(i16Abs(uint16(lo>>16))) << 16) |
|
|
(uint64(i16Abs(uint16(lo>>32))) << 32) | (uint64(i16Abs(uint16(lo>>48))) << 48)
|
|
case shapeI32x4:
|
|
hi = uint64(i32Abs(uint32(hi))) | (uint64(i32Abs(uint32(hi>>32))) << 32)
|
|
lo = uint64(i32Abs(uint32(lo))) | (uint64(i32Abs(uint32(lo>>32))) << 32)
|
|
case shapeI64x2:
|
|
if int64(hi) < 0 {
|
|
hi = -hi
|
|
}
|
|
if int64(lo) < 0 {
|
|
lo = -lo
|
|
}
|
|
case shapeF32x4:
|
|
hi = hi &^ (1<<31 | 1<<63)
|
|
lo = lo &^ (1<<31 | 1<<63)
|
|
case shapeF64x2:
|
|
hi = hi &^ (1 << 63)
|
|
lo = lo &^ (1 << 63)
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Popcnt:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
for i := 0; i < 16; i++ {
|
|
var v byte
|
|
if i < 8 {
|
|
v = byte(lo >> (i * 8))
|
|
} else {
|
|
v = byte(hi >> ((i - 8) * 8))
|
|
}
|
|
|
|
var cnt uint64
|
|
for i := 0; i < 8; i++ {
|
|
if (v>>i)&0b1 != 0 {
|
|
cnt++
|
|
}
|
|
}
|
|
|
|
if i < 8 {
|
|
retLo |= cnt << (i * 8)
|
|
} else {
|
|
retHi |= cnt << ((i - 8) * 8)
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Min:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i8MinS(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MinS(uint8(x1lo), uint8(x2lo))) |
|
|
uint64(i8MinS(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MinS(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
|
|
uint64(i8MinS(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MinS(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
|
|
uint64(i8MinS(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MinS(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
|
|
retHi = uint64(i8MinS(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MinS(uint8(x1hi), uint8(x2hi))) |
|
|
uint64(i8MinS(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MinS(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
|
|
uint64(i8MinS(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MinS(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
|
|
uint64(i8MinS(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MinS(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
|
|
} else {
|
|
retLo = uint64(i8MinU(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MinU(uint8(x1lo), uint8(x2lo))) |
|
|
uint64(i8MinU(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MinU(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
|
|
uint64(i8MinU(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MinU(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
|
|
uint64(i8MinU(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MinU(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
|
|
retHi = uint64(i8MinU(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MinU(uint8(x1hi), uint8(x2hi))) |
|
|
uint64(i8MinU(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MinU(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
|
|
uint64(i8MinU(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MinU(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
|
|
uint64(i8MinU(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MinU(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
|
|
}
|
|
case shapeI16x8:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i16MinS(uint16(x1lo), uint16(x2lo))) |
|
|
uint64(i16MinS(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
|
|
uint64(i16MinS(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
|
|
uint64(i16MinS(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
|
|
retHi = uint64(i16MinS(uint16(x1hi), uint16(x2hi))) |
|
|
uint64(i16MinS(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
|
|
uint64(i16MinS(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
|
|
uint64(i16MinS(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
|
|
} else {
|
|
retLo = uint64(i16MinU(uint16(x1lo), uint16(x2lo))) |
|
|
uint64(i16MinU(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
|
|
uint64(i16MinU(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
|
|
uint64(i16MinU(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
|
|
retHi = uint64(i16MinU(uint16(x1hi), uint16(x2hi))) |
|
|
uint64(i16MinU(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
|
|
uint64(i16MinU(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
|
|
uint64(i16MinU(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
|
|
}
|
|
case shapeI32x4:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i32MinS(uint32(x1lo), uint32(x2lo))) |
|
|
uint64(i32MinS(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
|
|
retHi = uint64(i32MinS(uint32(x1hi), uint32(x2hi))) |
|
|
uint64(i32MinS(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
|
|
} else {
|
|
retLo = uint64(i32MinU(uint32(x1lo), uint32(x2lo))) |
|
|
uint64(i32MinU(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
|
|
retHi = uint64(i32MinU(uint32(x1hi), uint32(x2hi))) |
|
|
uint64(i32MinU(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
|
|
}
|
|
case shapeF32x4:
|
|
retHi = wasmCompatMin32bits(uint32(x1hi), uint32(x2hi)) |
|
|
wasmCompatMin32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
|
|
retLo = wasmCompatMin32bits(uint32(x1lo), uint32(x2lo)) |
|
|
wasmCompatMin32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
|
|
case shapeF64x2:
|
|
retHi = math.Float64bits(moremath.WasmCompatMin64(
|
|
math.Float64frombits(x1hi),
|
|
math.Float64frombits(x2hi),
|
|
))
|
|
retLo = math.Float64bits(moremath.WasmCompatMin64(
|
|
math.Float64frombits(x1lo),
|
|
math.Float64frombits(x2lo),
|
|
))
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Max:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i8MaxS(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MaxS(uint8(x1lo), uint8(x2lo))) |
|
|
uint64(i8MaxS(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MaxS(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
|
|
uint64(i8MaxS(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MaxS(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
|
|
uint64(i8MaxS(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MaxS(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
|
|
retHi = uint64(i8MaxS(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MaxS(uint8(x1hi), uint8(x2hi))) |
|
|
uint64(i8MaxS(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MaxS(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
|
|
uint64(i8MaxS(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MaxS(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
|
|
uint64(i8MaxS(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MaxS(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
|
|
} else {
|
|
retLo = uint64(i8MaxU(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MaxU(uint8(x1lo), uint8(x2lo))) |
|
|
uint64(i8MaxU(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MaxU(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
|
|
uint64(i8MaxU(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MaxU(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
|
|
uint64(i8MaxU(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MaxU(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
|
|
retHi = uint64(i8MaxU(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MaxU(uint8(x1hi), uint8(x2hi))) |
|
|
uint64(i8MaxU(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MaxU(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
|
|
uint64(i8MaxU(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MaxU(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
|
|
uint64(i8MaxU(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MaxU(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
|
|
}
|
|
case shapeI16x8:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i16MaxS(uint16(x1lo), uint16(x2lo))) |
|
|
uint64(i16MaxS(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
|
|
uint64(i16MaxS(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
|
|
uint64(i16MaxS(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
|
|
retHi = uint64(i16MaxS(uint16(x1hi), uint16(x2hi))) |
|
|
uint64(i16MaxS(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
|
|
uint64(i16MaxS(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
|
|
uint64(i16MaxS(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
|
|
} else {
|
|
retLo = uint64(i16MaxU(uint16(x1lo), uint16(x2lo))) |
|
|
uint64(i16MaxU(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
|
|
uint64(i16MaxU(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
|
|
uint64(i16MaxU(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
|
|
retHi = uint64(i16MaxU(uint16(x1hi), uint16(x2hi))) |
|
|
uint64(i16MaxU(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
|
|
uint64(i16MaxU(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
|
|
uint64(i16MaxU(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
|
|
}
|
|
case shapeI32x4:
|
|
if op.B3 { // signed
|
|
retLo = uint64(i32MaxS(uint32(x1lo), uint32(x2lo))) |
|
|
uint64(i32MaxS(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
|
|
retHi = uint64(i32MaxS(uint32(x1hi), uint32(x2hi))) |
|
|
uint64(i32MaxS(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
|
|
} else {
|
|
retLo = uint64(i32MaxU(uint32(x1lo), uint32(x2lo))) |
|
|
uint64(i32MaxU(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
|
|
retHi = uint64(i32MaxU(uint32(x1hi), uint32(x2hi))) |
|
|
uint64(i32MaxU(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
|
|
}
|
|
case shapeF32x4:
|
|
retHi = wasmCompatMax32bits(uint32(x1hi), uint32(x2hi)) |
|
|
wasmCompatMax32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
|
|
retLo = wasmCompatMax32bits(uint32(x1lo), uint32(x2lo)) |
|
|
wasmCompatMax32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
|
|
case shapeF64x2:
|
|
retHi = math.Float64bits(moremath.WasmCompatMax64(
|
|
math.Float64frombits(x1hi),
|
|
math.Float64frombits(x2hi),
|
|
))
|
|
retLo = math.Float64bits(moremath.WasmCompatMax64(
|
|
math.Float64frombits(x1lo),
|
|
math.Float64frombits(x2lo),
|
|
))
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128AvgrU:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
retLo = uint64(i8RoundingAverage(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8RoundingAverage(uint8(x1lo), uint8(x2lo))) |
|
|
uint64(i8RoundingAverage(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8RoundingAverage(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
|
|
uint64(i8RoundingAverage(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8RoundingAverage(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
|
|
uint64(i8RoundingAverage(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8RoundingAverage(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
|
|
retHi = uint64(i8RoundingAverage(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8RoundingAverage(uint8(x1hi), uint8(x2hi))) |
|
|
uint64(i8RoundingAverage(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8RoundingAverage(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
|
|
uint64(i8RoundingAverage(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8RoundingAverage(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
|
|
uint64(i8RoundingAverage(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8RoundingAverage(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
|
|
case shapeI16x8:
|
|
retLo = uint64(i16RoundingAverage(uint16(x1lo), uint16(x2lo))) |
|
|
uint64(i16RoundingAverage(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
|
|
uint64(i16RoundingAverage(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
|
|
uint64(i16RoundingAverage(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
|
|
retHi = uint64(i16RoundingAverage(uint16(x1hi), uint16(x2hi))) |
|
|
uint64(i16RoundingAverage(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
|
|
uint64(i16RoundingAverage(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
|
|
uint64(i16RoundingAverage(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Pmin:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
if op.B1 == shapeF32x4 {
|
|
if flt32(math.Float32frombits(uint32(x2lo)), math.Float32frombits(uint32(x1lo))) {
|
|
retLo = x2lo & 0x00000000_ffffffff
|
|
} else {
|
|
retLo = x1lo & 0x00000000_ffffffff
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x2lo>>32)), math.Float32frombits(uint32(x1lo>>32))) {
|
|
retLo |= x2lo & 0xffffffff_00000000
|
|
} else {
|
|
retLo |= x1lo & 0xffffffff_00000000
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x2hi)), math.Float32frombits(uint32(x1hi))) {
|
|
retHi = x2hi & 0x00000000_ffffffff
|
|
} else {
|
|
retHi = x1hi & 0x00000000_ffffffff
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x2hi>>32)), math.Float32frombits(uint32(x1hi>>32))) {
|
|
retHi |= x2hi & 0xffffffff_00000000
|
|
} else {
|
|
retHi |= x1hi & 0xffffffff_00000000
|
|
}
|
|
} else {
|
|
if flt64(math.Float64frombits(x2lo), math.Float64frombits(x1lo)) {
|
|
retLo = x2lo
|
|
} else {
|
|
retLo = x1lo
|
|
}
|
|
if flt64(math.Float64frombits(x2hi), math.Float64frombits(x1hi)) {
|
|
retHi = x2hi
|
|
} else {
|
|
retHi = x1hi
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Pmax:
|
|
x2hi, x2lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
if op.B1 == shapeF32x4 {
|
|
if flt32(math.Float32frombits(uint32(x1lo)), math.Float32frombits(uint32(x2lo))) {
|
|
retLo = x2lo & 0x00000000_ffffffff
|
|
} else {
|
|
retLo = x1lo & 0x00000000_ffffffff
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x1lo>>32)), math.Float32frombits(uint32(x2lo>>32))) {
|
|
retLo |= x2lo & 0xffffffff_00000000
|
|
} else {
|
|
retLo |= x1lo & 0xffffffff_00000000
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x1hi)), math.Float32frombits(uint32(x2hi))) {
|
|
retHi = x2hi & 0x00000000_ffffffff
|
|
} else {
|
|
retHi = x1hi & 0x00000000_ffffffff
|
|
}
|
|
if flt32(math.Float32frombits(uint32(x1hi>>32)), math.Float32frombits(uint32(x2hi>>32))) {
|
|
retHi |= x2hi & 0xffffffff_00000000
|
|
} else {
|
|
retHi |= x1hi & 0xffffffff_00000000
|
|
}
|
|
} else {
|
|
if flt64(math.Float64frombits(x1lo), math.Float64frombits(x2lo)) {
|
|
retLo = x2lo
|
|
} else {
|
|
retLo = x1lo
|
|
}
|
|
if flt64(math.Float64frombits(x1hi), math.Float64frombits(x2hi)) {
|
|
retHi = x2hi
|
|
} else {
|
|
retHi = x1hi
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Ceil:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if op.B1 == shapeF32x4 {
|
|
lo = uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(lo))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(lo>>32))))) << 32)
|
|
hi = uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(hi))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(hi>>32))))) << 32)
|
|
} else {
|
|
lo = math.Float64bits(moremath.WasmCompatCeilF64(math.Float64frombits(lo)))
|
|
hi = math.Float64bits(moremath.WasmCompatCeilF64(math.Float64frombits(hi)))
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Floor:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if op.B1 == shapeF32x4 {
|
|
lo = uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(lo))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(lo>>32))))) << 32)
|
|
hi = uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(hi))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(hi>>32))))) << 32)
|
|
} else {
|
|
lo = math.Float64bits(moremath.WasmCompatFloorF64(math.Float64frombits(lo)))
|
|
hi = math.Float64bits(moremath.WasmCompatFloorF64(math.Float64frombits(hi)))
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Trunc:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if op.B1 == shapeF32x4 {
|
|
lo = uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(lo))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(lo>>32))))) << 32)
|
|
hi = uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(hi))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(hi>>32))))) << 32)
|
|
} else {
|
|
lo = math.Float64bits(moremath.WasmCompatTruncF64(math.Float64frombits(lo)))
|
|
hi = math.Float64bits(moremath.WasmCompatTruncF64(math.Float64frombits(hi)))
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Nearest:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
if op.B1 == shapeF32x4 {
|
|
lo = uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(lo))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(lo>>32))))) << 32)
|
|
hi = uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(hi))))) |
|
|
(uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(hi>>32))))) << 32)
|
|
} else {
|
|
lo = math.Float64bits(moremath.WasmCompatNearestF64(math.Float64frombits(lo)))
|
|
hi = math.Float64bits(moremath.WasmCompatNearestF64(math.Float64frombits(hi)))
|
|
}
|
|
ce.pushValue(lo)
|
|
ce.pushValue(hi)
|
|
frame.pc++
|
|
case operationKindV128Extend:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
var origin uint64
|
|
if op.B3 { // use lower 64 bits
|
|
origin = lo
|
|
} else {
|
|
origin = hi
|
|
}
|
|
|
|
signed := op.B2 == 1
|
|
|
|
var retHi, retLo uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 8; i++ {
|
|
v8 := byte(origin >> (i * 8))
|
|
|
|
var v16 uint16
|
|
if signed {
|
|
v16 = uint16(int8(v8))
|
|
} else {
|
|
v16 = uint16(v8)
|
|
}
|
|
|
|
if i < 4 {
|
|
retLo |= uint64(v16) << (i * 16)
|
|
} else {
|
|
retHi |= uint64(v16) << ((i - 4) * 16)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 4; i++ {
|
|
v16 := uint16(origin >> (i * 16))
|
|
|
|
var v32 uint32
|
|
if signed {
|
|
v32 = uint32(int16(v16))
|
|
} else {
|
|
v32 = uint32(v16)
|
|
}
|
|
|
|
if i < 2 {
|
|
retLo |= uint64(v32) << (i * 32)
|
|
} else {
|
|
retHi |= uint64(v32) << ((i - 2) * 32)
|
|
}
|
|
}
|
|
case shapeI32x4:
|
|
v32Lo := uint32(origin)
|
|
v32Hi := uint32(origin >> 32)
|
|
if signed {
|
|
retLo = uint64(int32(v32Lo))
|
|
retHi = uint64(int32(v32Hi))
|
|
} else {
|
|
retLo = uint64(v32Lo)
|
|
retHi = uint64(v32Hi)
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128ExtMul:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
var x1, x2 uint64
|
|
if op.B3 { // use lower 64 bits
|
|
x1, x2 = x1Lo, x2Lo
|
|
} else {
|
|
x1, x2 = x1Hi, x2Hi
|
|
}
|
|
|
|
signed := op.B2 == 1
|
|
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 8; i++ {
|
|
v1, v2 := byte(x1>>(i*8)), byte(x2>>(i*8))
|
|
|
|
var v16 uint16
|
|
if signed {
|
|
v16 = uint16(int16(int8(v1)) * int16(int8(v2)))
|
|
} else {
|
|
v16 = uint16(v1) * uint16(v2)
|
|
}
|
|
|
|
if i < 4 {
|
|
retLo |= uint64(v16) << (i * 16)
|
|
} else {
|
|
retHi |= uint64(v16) << ((i - 4) * 16)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 4; i++ {
|
|
v1, v2 := uint16(x1>>(i*16)), uint16(x2>>(i*16))
|
|
|
|
var v32 uint32
|
|
if signed {
|
|
v32 = uint32(int32(int16(v1)) * int32(int16(v2)))
|
|
} else {
|
|
v32 = uint32(v1) * uint32(v2)
|
|
}
|
|
|
|
if i < 2 {
|
|
retLo |= uint64(v32) << (i * 32)
|
|
} else {
|
|
retHi |= uint64(v32) << ((i - 2) * 32)
|
|
}
|
|
}
|
|
case shapeI32x4:
|
|
v1Lo, v2Lo := uint32(x1), uint32(x2)
|
|
v1Hi, v2Hi := uint32(x1>>32), uint32(x2>>32)
|
|
if signed {
|
|
retLo = uint64(int64(int32(v1Lo)) * int64(int32(v2Lo)))
|
|
retHi = uint64(int64(int32(v1Hi)) * int64(int32(v2Hi)))
|
|
} else {
|
|
retLo = uint64(v1Lo) * uint64(v2Lo)
|
|
retHi = uint64(v1Hi) * uint64(v2Hi)
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Q15mulrSatS:
|
|
x2hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1hi, x1Lo := ce.popValue(), ce.popValue()
|
|
var retLo, retHi uint64
|
|
for i := 0; i < 8; i++ {
|
|
var v, w int16
|
|
if i < 4 {
|
|
v, w = int16(uint16(x1Lo>>(i*16))), int16(uint16(x2Lo>>(i*16)))
|
|
} else {
|
|
v, w = int16(uint16(x1hi>>((i-4)*16))), int16(uint16(x2hi>>((i-4)*16)))
|
|
}
|
|
|
|
var uv uint64
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#saturating-integer-q-format-rounding-multiplication
|
|
if calc := ((int32(v) * int32(w)) + 0x4000) >> 15; calc < math.MinInt16 {
|
|
uv = uint64(uint16(0x8000))
|
|
} else if calc > math.MaxInt16 {
|
|
uv = uint64(uint16(0x7fff))
|
|
} else {
|
|
uv = uint64(uint16(int16(calc)))
|
|
}
|
|
|
|
if i < 4 {
|
|
retLo |= uv << (i * 16)
|
|
} else {
|
|
retHi |= uv << ((i - 4) * 16)
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128ExtAddPairwise:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
|
|
signed := op.B3
|
|
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI8x16:
|
|
for i := 0; i < 8; i++ {
|
|
var v1, v2 byte
|
|
if i < 4 {
|
|
v1, v2 = byte(lo>>((i*2)*8)), byte(lo>>((i*2+1)*8))
|
|
} else {
|
|
v1, v2 = byte(hi>>(((i-4)*2)*8)), byte(hi>>(((i-4)*2+1)*8))
|
|
}
|
|
|
|
var v16 uint16
|
|
if signed {
|
|
v16 = uint16(int16(int8(v1)) + int16(int8(v2)))
|
|
} else {
|
|
v16 = uint16(v1) + uint16(v2)
|
|
}
|
|
|
|
if i < 4 {
|
|
retLo |= uint64(v16) << (i * 16)
|
|
} else {
|
|
retHi |= uint64(v16) << ((i - 4) * 16)
|
|
}
|
|
}
|
|
case shapeI16x8:
|
|
for i := 0; i < 4; i++ {
|
|
var v1, v2 uint16
|
|
if i < 2 {
|
|
v1, v2 = uint16(lo>>((i*2)*16)), uint16(lo>>((i*2+1)*16))
|
|
} else {
|
|
v1, v2 = uint16(hi>>(((i-2)*2)*16)), uint16(hi>>(((i-2)*2+1)*16))
|
|
}
|
|
|
|
var v32 uint32
|
|
if signed {
|
|
v32 = uint32(int32(int16(v1)) + int32(int16(v2)))
|
|
} else {
|
|
v32 = uint32(v1) + uint32(v2)
|
|
}
|
|
|
|
if i < 2 {
|
|
retLo |= uint64(v32) << (i * 32)
|
|
} else {
|
|
retHi |= uint64(v32) << ((i - 2) * 32)
|
|
}
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128FloatPromote:
|
|
_, toPromote := ce.popValue(), ce.popValue()
|
|
ce.pushValue(math.Float64bits(float64(math.Float32frombits(uint32(toPromote)))))
|
|
ce.pushValue(math.Float64bits(float64(math.Float32frombits(uint32(toPromote >> 32)))))
|
|
frame.pc++
|
|
case operationKindV128FloatDemote:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(
|
|
uint64(math.Float32bits(float32(math.Float64frombits(lo)))) |
|
|
(uint64(math.Float32bits(float32(math.Float64frombits(hi)))) << 32),
|
|
)
|
|
ce.pushValue(0)
|
|
frame.pc++
|
|
case operationKindV128FConvertFromI:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
v1, v2, v3, v4 := uint32(lo), uint32(lo>>32), uint32(hi), uint32(hi>>32)
|
|
signed := op.B3
|
|
|
|
var retLo, retHi uint64
|
|
switch op.B1 { // Destination shape.
|
|
case shapeF32x4: // f32x4 from signed/unsigned i32x4
|
|
if signed {
|
|
retLo = uint64(math.Float32bits(float32(int32(v1)))) |
|
|
(uint64(math.Float32bits(float32(int32(v2)))) << 32)
|
|
retHi = uint64(math.Float32bits(float32(int32(v3)))) |
|
|
(uint64(math.Float32bits(float32(int32(v4)))) << 32)
|
|
} else {
|
|
retLo = uint64(math.Float32bits(float32(v1))) |
|
|
(uint64(math.Float32bits(float32(v2))) << 32)
|
|
retHi = uint64(math.Float32bits(float32(v3))) |
|
|
(uint64(math.Float32bits(float32(v4))) << 32)
|
|
}
|
|
case shapeF64x2: // f64x2 from signed/unsigned i32x4
|
|
if signed {
|
|
retLo, retHi = math.Float64bits(float64(int32(v1))), math.Float64bits(float64(int32(v2)))
|
|
} else {
|
|
retLo, retHi = math.Float64bits(float64(v1)), math.Float64bits(float64(v2))
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Narrow:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
signed := op.B3
|
|
|
|
var retLo, retHi uint64
|
|
switch op.B1 {
|
|
case shapeI16x8: // signed/unsigned i16x8 to i8x16
|
|
for i := 0; i < 8; i++ {
|
|
var v16 uint16
|
|
if i < 4 {
|
|
v16 = uint16(x1Lo >> (i * 16))
|
|
} else {
|
|
v16 = uint16(x1Hi >> ((i - 4) * 16))
|
|
}
|
|
|
|
var v byte
|
|
if signed {
|
|
if s := int16(v16); s > math.MaxInt8 {
|
|
v = math.MaxInt8
|
|
} else if s < math.MinInt8 {
|
|
s = math.MinInt8
|
|
v = byte(s)
|
|
} else {
|
|
v = byte(v16)
|
|
}
|
|
} else {
|
|
if s := int16(v16); s > math.MaxUint8 {
|
|
v = math.MaxUint8
|
|
} else if s < 0 {
|
|
v = 0
|
|
} else {
|
|
v = byte(v16)
|
|
}
|
|
}
|
|
retLo |= uint64(v) << (i * 8)
|
|
}
|
|
for i := 0; i < 8; i++ {
|
|
var v16 uint16
|
|
if i < 4 {
|
|
v16 = uint16(x2Lo >> (i * 16))
|
|
} else {
|
|
v16 = uint16(x2Hi >> ((i - 4) * 16))
|
|
}
|
|
|
|
var v byte
|
|
if signed {
|
|
if s := int16(v16); s > math.MaxInt8 {
|
|
v = math.MaxInt8
|
|
} else if s < math.MinInt8 {
|
|
s = math.MinInt8
|
|
v = byte(s)
|
|
} else {
|
|
v = byte(v16)
|
|
}
|
|
} else {
|
|
if s := int16(v16); s > math.MaxUint8 {
|
|
v = math.MaxUint8
|
|
} else if s < 0 {
|
|
v = 0
|
|
} else {
|
|
v = byte(v16)
|
|
}
|
|
}
|
|
retHi |= uint64(v) << (i * 8)
|
|
}
|
|
case shapeI32x4: // signed/unsigned i32x4 to i16x8
|
|
for i := 0; i < 4; i++ {
|
|
var v32 uint32
|
|
if i < 2 {
|
|
v32 = uint32(x1Lo >> (i * 32))
|
|
} else {
|
|
v32 = uint32(x1Hi >> ((i - 2) * 32))
|
|
}
|
|
|
|
var v uint16
|
|
if signed {
|
|
if s := int32(v32); s > math.MaxInt16 {
|
|
v = math.MaxInt16
|
|
} else if s < math.MinInt16 {
|
|
s = math.MinInt16
|
|
v = uint16(s)
|
|
} else {
|
|
v = uint16(v32)
|
|
}
|
|
} else {
|
|
if s := int32(v32); s > math.MaxUint16 {
|
|
v = math.MaxUint16
|
|
} else if s < 0 {
|
|
v = 0
|
|
} else {
|
|
v = uint16(v32)
|
|
}
|
|
}
|
|
retLo |= uint64(v) << (i * 16)
|
|
}
|
|
|
|
for i := 0; i < 4; i++ {
|
|
var v32 uint32
|
|
if i < 2 {
|
|
v32 = uint32(x2Lo >> (i * 32))
|
|
} else {
|
|
v32 = uint32(x2Hi >> ((i - 2) * 32))
|
|
}
|
|
|
|
var v uint16
|
|
if signed {
|
|
if s := int32(v32); s > math.MaxInt16 {
|
|
v = math.MaxInt16
|
|
} else if s < math.MinInt16 {
|
|
s = math.MinInt16
|
|
v = uint16(s)
|
|
} else {
|
|
v = uint16(v32)
|
|
}
|
|
} else {
|
|
if s := int32(v32); s > math.MaxUint16 {
|
|
v = math.MaxUint16
|
|
} else if s < 0 {
|
|
v = 0
|
|
} else {
|
|
v = uint16(v32)
|
|
}
|
|
}
|
|
retHi |= uint64(v) << (i * 16)
|
|
}
|
|
}
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindV128Dot:
|
|
x2Hi, x2Lo := ce.popValue(), ce.popValue()
|
|
x1Hi, x1Lo := ce.popValue(), ce.popValue()
|
|
ce.pushValue(
|
|
uint64(uint32(int32(int16(x1Lo>>0))*int32(int16(x2Lo>>0))+int32(int16(x1Lo>>16))*int32(int16(x2Lo>>16)))) |
|
|
(uint64(uint32(int32(int16(x1Lo>>32))*int32(int16(x2Lo>>32))+int32(int16(x1Lo>>48))*int32(int16(x2Lo>>48)))) << 32),
|
|
)
|
|
ce.pushValue(
|
|
uint64(uint32(int32(int16(x1Hi>>0))*int32(int16(x2Hi>>0))+int32(int16(x1Hi>>16))*int32(int16(x2Hi>>16)))) |
|
|
(uint64(uint32(int32(int16(x1Hi>>32))*int32(int16(x2Hi>>32))+int32(int16(x1Hi>>48))*int32(int16(x2Hi>>48)))) << 32),
|
|
)
|
|
frame.pc++
|
|
case operationKindV128ITruncSatFromF:
|
|
hi, lo := ce.popValue(), ce.popValue()
|
|
signed := op.B3
|
|
var retLo, retHi uint64
|
|
|
|
switch op.B1 {
|
|
case shapeF32x4: // f32x4 to i32x4
|
|
for i, f64 := range [4]float64{
|
|
math.Trunc(float64(math.Float32frombits(uint32(lo)))),
|
|
math.Trunc(float64(math.Float32frombits(uint32(lo >> 32)))),
|
|
math.Trunc(float64(math.Float32frombits(uint32(hi)))),
|
|
math.Trunc(float64(math.Float32frombits(uint32(hi >> 32)))),
|
|
} {
|
|
|
|
var v uint32
|
|
if math.IsNaN(f64) {
|
|
v = 0
|
|
} else if signed {
|
|
if f64 < math.MinInt32 {
|
|
f64 = math.MinInt32
|
|
} else if f64 > math.MaxInt32 {
|
|
f64 = math.MaxInt32
|
|
}
|
|
v = uint32(int32(f64))
|
|
} else {
|
|
if f64 < 0 {
|
|
f64 = 0
|
|
} else if f64 > math.MaxUint32 {
|
|
f64 = math.MaxUint32
|
|
}
|
|
v = uint32(f64)
|
|
}
|
|
|
|
if i < 2 {
|
|
retLo |= uint64(v) << (i * 32)
|
|
} else {
|
|
retHi |= uint64(v) << ((i - 2) * 32)
|
|
}
|
|
}
|
|
|
|
case shapeF64x2: // f64x2 to i32x4
|
|
for i, f := range [2]float64{
|
|
math.Trunc(math.Float64frombits(lo)),
|
|
math.Trunc(math.Float64frombits(hi)),
|
|
} {
|
|
var v uint32
|
|
if math.IsNaN(f) {
|
|
v = 0
|
|
} else if signed {
|
|
if f < math.MinInt32 {
|
|
f = math.MinInt32
|
|
} else if f > math.MaxInt32 {
|
|
f = math.MaxInt32
|
|
}
|
|
v = uint32(int32(f))
|
|
} else {
|
|
if f < 0 {
|
|
f = 0
|
|
} else if f > math.MaxUint32 {
|
|
f = math.MaxUint32
|
|
}
|
|
v = uint32(f)
|
|
}
|
|
|
|
retLo |= uint64(v) << (i * 32)
|
|
}
|
|
}
|
|
|
|
ce.pushValue(retLo)
|
|
ce.pushValue(retHi)
|
|
frame.pc++
|
|
case operationKindAtomicMemoryWait:
|
|
timeout := int64(ce.popValue())
|
|
exp := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
// Runtime instead of validation error because the spec intends to allow binaries to include
|
|
// such instructions as long as they are not executed.
|
|
if !memoryInst.Shared {
|
|
panic(wasmruntime.ErrRuntimeExpectedSharedMemory)
|
|
}
|
|
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
if int(offset) > len(memoryInst.Buffer)-4 {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(memoryInst.Wait32(offset, uint32(exp), timeout, func(mem *wasm.MemoryInstance, offset uint32) uint32 {
|
|
mem.Mux.Lock()
|
|
defer mem.Mux.Unlock()
|
|
value, _ := mem.ReadUint32Le(offset)
|
|
return value
|
|
}))
|
|
case unsignedTypeI64:
|
|
if offset%8 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
if int(offset) > len(memoryInst.Buffer)-8 {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(memoryInst.Wait64(offset, exp, timeout, func(mem *wasm.MemoryInstance, offset uint32) uint64 {
|
|
mem.Mux.Lock()
|
|
defer mem.Mux.Unlock()
|
|
value, _ := mem.ReadUint64Le(offset)
|
|
return value
|
|
}))
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicMemoryNotify:
|
|
count := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
// Just a bounds check
|
|
if offset >= memoryInst.Size() {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
res := memoryInst.Notify(offset, uint32(count))
|
|
ce.pushValue(uint64(res))
|
|
frame.pc++
|
|
case operationKindAtomicFence:
|
|
// Memory not required for fence only
|
|
if memoryInst != nil {
|
|
// An empty critical section can be used as a synchronization primitive, which is what
|
|
// fence is. Probably, there are no spectests or defined behavior to confirm this yet.
|
|
memoryInst.Mux.Lock()
|
|
memoryInst.Mux.Unlock() //nolint:staticcheck
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicLoad:
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
val, ok := memoryInst.ReadUint32Le(offset)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(val))
|
|
case unsignedTypeI64:
|
|
if offset%8 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
val, ok := memoryInst.ReadUint64Le(offset)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(val)
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicLoad8:
|
|
offset := ce.popMemoryOffset(op)
|
|
memoryInst.Mux.Lock()
|
|
val, ok := memoryInst.ReadByte(offset)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(val))
|
|
frame.pc++
|
|
case operationKindAtomicLoad16:
|
|
offset := ce.popMemoryOffset(op)
|
|
if offset%2 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
val, ok := memoryInst.ReadUint16Le(offset)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
ce.pushValue(uint64(val))
|
|
frame.pc++
|
|
case operationKindAtomicStore:
|
|
val := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
ok := memoryInst.WriteUint32Le(offset, uint32(val))
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
case unsignedTypeI64:
|
|
if offset%8 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
ok := memoryInst.WriteUint64Le(offset, val)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicStore8:
|
|
val := byte(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
memoryInst.Mux.Lock()
|
|
ok := memoryInst.WriteByte(offset, val)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicStore16:
|
|
val := uint16(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
if offset%2 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
ok := memoryInst.WriteUint16Le(offset, val)
|
|
memoryInst.Mux.Unlock()
|
|
if !ok {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicRMW:
|
|
val := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint32Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
var newVal uint32
|
|
switch atomicArithmeticOp(op.B2) {
|
|
case atomicArithmeticOpAdd:
|
|
newVal = old + uint32(val)
|
|
case atomicArithmeticOpSub:
|
|
newVal = old - uint32(val)
|
|
case atomicArithmeticOpAnd:
|
|
newVal = old & uint32(val)
|
|
case atomicArithmeticOpOr:
|
|
newVal = old | uint32(val)
|
|
case atomicArithmeticOpXor:
|
|
newVal = old ^ uint32(val)
|
|
case atomicArithmeticOpNop:
|
|
newVal = uint32(val)
|
|
}
|
|
memoryInst.WriteUint32Le(offset, newVal)
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
case unsignedTypeI64:
|
|
if offset%8 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
var newVal uint64
|
|
switch atomicArithmeticOp(op.B2) {
|
|
case atomicArithmeticOpAdd:
|
|
newVal = old + val
|
|
case atomicArithmeticOpSub:
|
|
newVal = old - val
|
|
case atomicArithmeticOpAnd:
|
|
newVal = old & val
|
|
case atomicArithmeticOpOr:
|
|
newVal = old | val
|
|
case atomicArithmeticOpXor:
|
|
newVal = old ^ val
|
|
case atomicArithmeticOpNop:
|
|
newVal = val
|
|
}
|
|
memoryInst.WriteUint64Le(offset, newVal)
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(old)
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicRMW8:
|
|
val := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadByte(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
arg := byte(val)
|
|
var newVal byte
|
|
switch atomicArithmeticOp(op.B2) {
|
|
case atomicArithmeticOpAdd:
|
|
newVal = old + arg
|
|
case atomicArithmeticOpSub:
|
|
newVal = old - arg
|
|
case atomicArithmeticOpAnd:
|
|
newVal = old & arg
|
|
case atomicArithmeticOpOr:
|
|
newVal = old | arg
|
|
case atomicArithmeticOpXor:
|
|
newVal = old ^ arg
|
|
case atomicArithmeticOpNop:
|
|
newVal = arg
|
|
}
|
|
memoryInst.WriteByte(offset, newVal)
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
frame.pc++
|
|
case operationKindAtomicRMW16:
|
|
val := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
if offset%2 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint16Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
arg := uint16(val)
|
|
var newVal uint16
|
|
switch atomicArithmeticOp(op.B2) {
|
|
case atomicArithmeticOpAdd:
|
|
newVal = old + arg
|
|
case atomicArithmeticOpSub:
|
|
newVal = old - arg
|
|
case atomicArithmeticOpAnd:
|
|
newVal = old & arg
|
|
case atomicArithmeticOpOr:
|
|
newVal = old | arg
|
|
case atomicArithmeticOpXor:
|
|
newVal = old ^ arg
|
|
case atomicArithmeticOpNop:
|
|
newVal = arg
|
|
}
|
|
memoryInst.WriteUint16Le(offset, newVal)
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
frame.pc++
|
|
case operationKindAtomicRMWCmpxchg:
|
|
rep := ce.popValue()
|
|
exp := ce.popValue()
|
|
offset := ce.popMemoryOffset(op)
|
|
switch unsignedType(op.B1) {
|
|
case unsignedTypeI32:
|
|
if offset%4 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint32Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if old == uint32(exp) {
|
|
memoryInst.WriteUint32Le(offset, uint32(rep))
|
|
}
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
case unsignedTypeI64:
|
|
if offset%8 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint64Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if old == exp {
|
|
memoryInst.WriteUint64Le(offset, rep)
|
|
}
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(old)
|
|
}
|
|
frame.pc++
|
|
case operationKindAtomicRMW8Cmpxchg:
|
|
rep := byte(ce.popValue())
|
|
exp := byte(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadByte(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if old == exp {
|
|
memoryInst.WriteByte(offset, rep)
|
|
}
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
frame.pc++
|
|
case operationKindAtomicRMW16Cmpxchg:
|
|
rep := uint16(ce.popValue())
|
|
exp := uint16(ce.popValue())
|
|
offset := ce.popMemoryOffset(op)
|
|
if offset%2 != 0 {
|
|
panic(wasmruntime.ErrRuntimeUnalignedAtomic)
|
|
}
|
|
memoryInst.Mux.Lock()
|
|
old, ok := memoryInst.ReadUint16Le(offset)
|
|
if !ok {
|
|
memoryInst.Mux.Unlock()
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
if old == exp {
|
|
memoryInst.WriteUint16Le(offset, rep)
|
|
}
|
|
memoryInst.Mux.Unlock()
|
|
ce.pushValue(uint64(old))
|
|
frame.pc++
|
|
default:
|
|
frame.pc++
|
|
}
|
|
}
|
|
ce.popFrame()
|
|
}
|
|
|
|
func wasmCompatMax32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(moremath.WasmCompatMax32(
|
|
math.Float32frombits(v1),
|
|
math.Float32frombits(v2),
|
|
)))
|
|
}
|
|
|
|
func wasmCompatMin32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(moremath.WasmCompatMin32(
|
|
math.Float32frombits(v1),
|
|
math.Float32frombits(v2),
|
|
)))
|
|
}
|
|
|
|
func addFloat32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(math.Float32frombits(v1) + math.Float32frombits(v2)))
|
|
}
|
|
|
|
func subFloat32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(math.Float32frombits(v1) - math.Float32frombits(v2)))
|
|
}
|
|
|
|
func mulFloat32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(math.Float32frombits(v1) * math.Float32frombits(v2)))
|
|
}
|
|
|
|
func divFloat32bits(v1, v2 uint32) uint64 {
|
|
return uint64(math.Float32bits(math.Float32frombits(v1) / math.Float32frombits(v2)))
|
|
}
|
|
|
|
// https://www.w3.org/TR/2022/WD-wasm-core-2-20220419/exec/numerics.html#xref-exec-numerics-op-flt-mathrm-flt-n-z-1-z-2
|
|
func flt32(z1, z2 float32) bool {
|
|
if z1 != z1 || z2 != z2 {
|
|
return false
|
|
} else if z1 == z2 {
|
|
return false
|
|
} else if math.IsInf(float64(z1), 1) {
|
|
return false
|
|
} else if math.IsInf(float64(z1), -1) {
|
|
return true
|
|
} else if math.IsInf(float64(z2), 1) {
|
|
return true
|
|
} else if math.IsInf(float64(z2), -1) {
|
|
return false
|
|
}
|
|
return z1 < z2
|
|
}
|
|
|
|
// https://www.w3.org/TR/2022/WD-wasm-core-2-20220419/exec/numerics.html#xref-exec-numerics-op-flt-mathrm-flt-n-z-1-z-2
|
|
func flt64(z1, z2 float64) bool {
|
|
if z1 != z1 || z2 != z2 {
|
|
return false
|
|
} else if z1 == z2 {
|
|
return false
|
|
} else if math.IsInf(z1, 1) {
|
|
return false
|
|
} else if math.IsInf(z1, -1) {
|
|
return true
|
|
} else if math.IsInf(z2, 1) {
|
|
return true
|
|
} else if math.IsInf(z2, -1) {
|
|
return false
|
|
}
|
|
return z1 < z2
|
|
}
|
|
|
|
func i8RoundingAverage(v1, v2 byte) byte {
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#lane-wise-integer-rounding-average
|
|
return byte((uint16(v1) + uint16(v2) + uint16(1)) / 2)
|
|
}
|
|
|
|
func i16RoundingAverage(v1, v2 uint16) uint16 {
|
|
// https://github.com/WebAssembly/spec/blob/wg-2.0.draft1/proposals/simd/SIMD.md#lane-wise-integer-rounding-average
|
|
return uint16((uint32(v1) + uint32(v2) + 1) / 2)
|
|
}
|
|
|
|
func i8Abs(v byte) byte {
|
|
if i := int8(v); i < 0 {
|
|
return byte(-i)
|
|
} else {
|
|
return byte(i)
|
|
}
|
|
}
|
|
|
|
func i8MaxU(v1, v2 byte) byte {
|
|
if v1 < v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i8MinU(v1, v2 byte) byte {
|
|
if v1 > v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i8MaxS(v1, v2 byte) byte {
|
|
if int8(v1) < int8(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i8MinS(v1, v2 byte) byte {
|
|
if int8(v1) > int8(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i16MaxU(v1, v2 uint16) uint16 {
|
|
if v1 < v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i16MinU(v1, v2 uint16) uint16 {
|
|
if v1 > v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i16MaxS(v1, v2 uint16) uint16 {
|
|
if int16(v1) < int16(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i16MinS(v1, v2 uint16) uint16 {
|
|
if int16(v1) > int16(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i32MaxU(v1, v2 uint32) uint32 {
|
|
if v1 < v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i32MinU(v1, v2 uint32) uint32 {
|
|
if v1 > v2 {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i32MaxS(v1, v2 uint32) uint32 {
|
|
if int32(v1) < int32(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i32MinS(v1, v2 uint32) uint32 {
|
|
if int32(v1) > int32(v2) {
|
|
return v2
|
|
} else {
|
|
return v1
|
|
}
|
|
}
|
|
|
|
func i16Abs(v uint16) uint16 {
|
|
if i := int16(v); i < 0 {
|
|
return uint16(-i)
|
|
} else {
|
|
return uint16(i)
|
|
}
|
|
}
|
|
|
|
func i32Abs(v uint32) uint32 {
|
|
if i := int32(v); i < 0 {
|
|
return uint32(-i)
|
|
} else {
|
|
return uint32(i)
|
|
}
|
|
}
|
|
|
|
func (ce *callEngine) callNativeFuncWithListener(ctx context.Context, m *wasm.ModuleInstance, f *function, fnl experimental.FunctionListener) context.Context {
|
|
def, typ := f.definition(), f.funcType
|
|
|
|
ce.stackIterator.reset(ce.stack, ce.frames, f)
|
|
fnl.Before(ctx, m, def, ce.peekValues(typ.ParamNumInUint64), &ce.stackIterator)
|
|
ce.stackIterator.clear()
|
|
ce.callNativeFunc(ctx, m, f)
|
|
fnl.After(ctx, m, def, ce.peekValues(typ.ResultNumInUint64))
|
|
return ctx
|
|
}
|
|
|
|
// popMemoryOffset takes a memory offset off the stack for use in load and store instructions.
|
|
// As the top of stack value is 64-bit, this ensures it is in range before returning it.
|
|
func (ce *callEngine) popMemoryOffset(op *unionOperation) uint32 {
|
|
offset := op.U2 + ce.popValue()
|
|
if offset > math.MaxUint32 {
|
|
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
|
|
}
|
|
return uint32(offset)
|
|
}
|
|
|
|
func (ce *callEngine) callGoFuncWithStack(ctx context.Context, m *wasm.ModuleInstance, f *function) {
|
|
typ := f.funcType
|
|
paramLen := typ.ParamNumInUint64
|
|
resultLen := typ.ResultNumInUint64
|
|
stackLen := paramLen
|
|
|
|
// In the interpreter engine, ce.stack may only have capacity to store
|
|
// parameters. Grow when there are more results than parameters.
|
|
if growLen := resultLen - paramLen; growLen > 0 {
|
|
for i := 0; i < growLen; i++ {
|
|
ce.stack = append(ce.stack, 0)
|
|
}
|
|
stackLen += growLen
|
|
}
|
|
|
|
// Pass the stack elements to the go function.
|
|
stack := ce.stack[len(ce.stack)-stackLen:]
|
|
ce.callGoFunc(ctx, m, f, stack)
|
|
|
|
// Shrink the stack when there were more parameters than results.
|
|
if shrinkLen := paramLen - resultLen; shrinkLen > 0 {
|
|
ce.stack = ce.stack[0 : len(ce.stack)-shrinkLen]
|
|
}
|
|
}
|